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ZooKeys 765: 79–101 (2018)
A new species of Hyphessobrycon Durbin from northeastern Brazil...
doi: 10.3897/zookeys.765.23157
RESEARCH ARTICLE
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A new species of Hyphessobrycon Durbin
from northeastern Brazil: evidence from morphological
data and DNA barcoding (Characiformes, Characidae)
Erick Cristofore Guimarães1,5, Pâmella Silva De Brito2,5, Leonardo Manir Feitosa3,
Luís Fernando Carvalho-Costa4, Felipe Polivanov Ottoni1,2,5,6
1 Universidade Federal do Maranhão, Programa de Pós-Graduação em Biodiversidade e Conservação. Av. dos
Portugueses 1966, Cidade Universitária do Bacanga, CEP 65080-805, São Luís, MA, Brazil 2 Universidade
Federal do Maranhão, Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazônia Legal. Av.
dos Portugueses 1966, Cidade Universitária do Bacanga, CEP 65080-805, São Luís, MA, Brazil 3 Universidade Federal de Pernambuco, Programa de Pós-Graduação em Biologia Animal. Av. Professor Moraes Rego
1235, Cidade Universitária, CEP: 50670-901, Recife, PE, Brazil 4 Universidade Federal do Maranhão,
Departamento de Biologia, Laboratório de Genética e Biologia Molecular, Av. dos Portugueses 1966, Cidade
Universitária do Bacanga, CEP 65080-805, São Luís, MA, Brazil 5 Universidade Federal do Maranhão,
Laboratório de Sistemática e Ecologia de Organismos Aquáticos, Centro de Ciências Agrárias e Ambientais,
Campus Universitário, CCAA, BR-222, KM 04, S/N, Boa Vista, CEP 65500-000, Chapadinha, MA, Brazil
6 Universidade Federal do Maranhão, Programa de Pós-Graduação em Oceanografia. Av. dos Portugueses
1966, Cidade Universitária do Bacanga, CEP 65080-805, São Luís, MA, Brazil
Corresponding author: Erick Cristofore Guimarães (erick.ictio@yahoo.com)
Academic editor: J. Maldonado | Received 3 February 2018 | Accepted 7 May 2018 | Published 7 June 2018
http://zoobank.org/07277DB7-7563-4712-AC3F-E940B1B4AC27
Citation: Guimarães EC, De Brito PS, Feitosa LM, Carvalho-Costa LF, Ottoni FP (2018) A new species
of Hyphessobrycon Durbin from northeastern Brazil: evidence from morphological data and DNA barcoding
(Characiformes, Characidae). ZooKeys 765: 79–101. https://doi.org/10.3897/zookeys.765.23157
Abstract
A new species of Hyphessobrycon is described for the upper Munim and Preguiças river basins, northeastern
Brazil, supported by morphological and molecular species delimitation methods. This new species belongs
to the Hyphessobrycon sensu stricto group, as it has the three main diagnostic character states of this assemblage: presence of a dark brown or black blotch on the dorsal fin, absence of a black midlateral stripe on
its flank and the position of Weberian apparatus upward horizontal through dorsal margin of operculum.
Our phylogenetic analysis also supported the allocation of the new species in this group; however, it was
not possible to recover the species sister-group. Pristella maxillaris and Moenkhausia hemigrammoides were
recovered as the sister-clade of the Hyphessobrycon sensu stricto group.
Copyright Erick Cristofore Guimarães et al. This is an open access article distributed under the terms of the Creative Commons Attribution License
(CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Erick Cristofore Guimarães et al. / ZooKeys 765: 79–101 (2018)
Resumo
Uma nova espécie de Hyphessobrycon é aqui descrita para as bacias do alto Rio Munim e Preguiças, nordeste
do Brasil, sustentada por métodos morfológicos e moleculares de delimitação de espécies. Essa nova espécie é
membro do grupo Hyphessobrycon sensu stricto, já que possui os três principais estados de caracteres diagnósticos
desse agrupamento: presença de uma mancha marrom escura ou negra na nadadeira dorsal, ausência de uma
faixa lateral no meio do flanco e a posição do aparelho de Weber localizado acima da horizontal da margem
dorsal do opérculo. Nossa análise filogenética também apoia o posicionamento da nova espécie dentro desse
grupo, entretanto não foi possível recuperar o grupo-irmão da espécie. Pristella maxillaris e Moenkhausia hemigrammoides foram recuperados com sendo o clado irmão do grupo Hyphessobrycon sensu stricto.
Keywords
Hyphessobrycon sensu stricto, integrative taxonomy, Pristellinae, rosy tetra clade
Palavras-chave
clado rosy tetra, Hyphessobrycon sensu stricto, taxonomia integrativa, Pristellinae
Introduction
Hyphessobrycon Durbin, 1908 is one of the most species-rich genera of Characidae,
currently comprising approximately 150 valid species (Ohara et al. 2017). It is widely
distributed along the river basins of the Neotropical region, from southern Mexico to
the La Plata River basin in northeastern Argentina (Carvalho and Malabarba 2015,
Teixeira et al. 2015, Garcia-Alzate et al. 2017), with highest diversity in the Amazon basin (Miquelarena and López 2006, Lima et al. 2013, Bragança et al. 2015, Carvalho and
Malabarba 2015, Marinho et al. 2016, Carvalho et al. 2017, Moreira and Lima 2017).
Extensive data show that Hyphessobrycon is not a monophyletic group (Carvalho
et al. 2017, Moreira and Lima 2017). It was diagnosed by an artificial combination of
character states proposed by Eigenmann (1917), such as: the presence of an adipose fin;
maxillary with few teeth or none; lateral line incomplete; third infraorbital bone not in
contact with the sensory canal of the preopercle; premaxillary with two series of teeth;
and caudal-fin lobes without scales at the base. Nevertheless, new species descriptions
continue to follow this artificial combination (e.g., Ohara et al. 2017, Garcia-Alzate et al.
2017, Carvalho et al. 2017, Moreira and Lima 2017).
In addition, some artificial species groups of Hyphessobrycon were proposed based
on the combination of character states (e.g., Weitzman and Palmer 1997, Zarske 2014,
García-Alzate et al. 2008a, b, 2013, Carvalho and Malabarba 2015) relying mainly on
coloration patterns. However, in many cases, it is not possible to assign without reasonable doubt to which group a particular species belongs (Bragança et al. 2015).
One of this species group was termed as “group F” by Géry (1977), being defined
by the presence of a dark brown or black blotch on dorsal fin and no midlateral stripe on
body. This group was previously termed as “callistus group”, with a similar composition
and definition by Géry (1961). Weitzman and Palmer (1997) proposed the name “rosy
tetra clade” for this assemblage, including approximately 30 species of Hyphessobrycon
A new species of Hyphessobrycon Durbin from northeastern Brazil...
81
and a few other probably closely related species belonging to other genera. These authors
also confirmed the presence of the black blotch on the dorsal fin as one of the main diagnostic features of this assemblage. However, they also stated that this blotch was absent
in some of its species (e.g., H. ecuadoriensis Eigenmann & Henn, 1914, H. loweae Costa
& Géry, 1994 and H. panamensis Durbin, 1908).
After that, Carvalho (2011) and Carvalho and Malabarba (2015) proposed the
group named Hyphessobrycon sensu stricto, diagnosed by the position of Weberian apparatus upward horizontal through dorsal margin of operculum, presence of a black
blotch on dorsal fin and the absence of a midlateral black stripe on body, with a more
restricted composition than the “rosy tetra clade” sensu Weitzman and Palmer (1997),
comprising: H. compressus (Meek, 1904), H. bentosi Durbin, 1908, H. copelandi Durbin, 1908, H. epicharis Weitzman & Palmer, 1997, H. eques (Steindachner, 1882),
H. erythrostigma (Fowler, 1943), H. georgettae Géry, 1961, H. haraldschultzi Travassos, 1960, H. hasemani Fowler, 1913, H. khardinae Zarske, 2008, H. megalopterus
(Eigenmann, 1915), H. micropterus (Eigenmann, 1915), H. minor Durbin, 1909, H.
pulchripinnis Ahl, 1937, H. pyrrhonotus Burgess, 1993, H. rosaceus Durbin, 1909, H.
roseus (Géry, 1960), H. simulatus (Géry, 1960), H. socolofi Weitzman, 1977, H. sweglesi
(Géry, 1961), H. takasei Géry, 1964 and H. werneri Géry & Uj, 1987. Other species
recently referred to the “rosy tetra clade” such as Hyphessobrycon dorsalis Zarske, 2014,
H. jackrobertsi Zarske, 2014, H. paepkei Zarske, 2014 and H. pando Hein, 2009 share
these traits, but their taxonomic status is uncertain (Carvalho and Malabarba 2015).
The key point is that the remaining species of Hyphessobrycon included in the other
groups will probably need to be assigned to other genera or new genera (Hyphessobrycon sensu lato) (Carvalho and Malabarba 2015).
One way to overcome the confusing taxonomy of problematic groups, to have accurate species identifications and species diversity estimates of groups is to use different
operational criteria for species delimitation (Goldstein and Desalle 2010, Padial et al.
2010). Any operational criteria (species delimitation methods) may separately provide
evidence about the species limits and identity independently from other criteria (de
Queiroz 2005, 2007), but evidence corroborated from multiple operational criteria
is considered to produce stronger hypotheses of lineage divergence (de Queiroz 2007,
Goldstein and Desalle 2010), converging to the proposal for an integrative taxonomy
(Goldstein and Desalle 2010, Padial et al. 2010). Gathering morphological and molecular data has become a common practice to identify and delimit species of fish
(Teletchea 2009), mainly in groups including cryptic or morphologically similar species. The most widespread molecular method used in taxonomy has been the DNA
barcoding, which consists on the use of a single gene from mitochondrial DNA (cytochrome oxidase subunit I – COI) as a proxy for species differentiation (Hebert et al.
2003). In fact, several studies have been carried out using molecular markers and new
species have been delimited and/or described, in most cases, based both on molecular
and morphological evidence (e.g., Costa and Amorim 2011, Costa et al. 2012, Roxo
et al 2012, Villa-Verde et al. 2012, Castro-Paz et al. 2014, Costa et al. 2014, Benzaquem et al 2015, Mattos et al. 2015, Costa et al. 2017).
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Erick Cristofore Guimarães et al. / ZooKeys 765: 79–101 (2018)
A new species of Hyphessobrycon, member of the Hyphessobrycon sensu stricto Carvalho and Malabarba, 2015 is herein described from the Munim and Preguiças river
basins, two coastal river basins of the Maranhão State, northeastern Brazil, based on
both morphology and molecular data.
Materials and methods
Morphological analysis
Measurements and counts were made according to Fink and Weitzman (1974), with
exception for the scale rows below lateral line, which were counted to the insertion of
pelvic fin. Horizontal scale rows between the dorsal-fin origin and lateral line do not
include the scale of the median predorsal series situated just anterior to the first dorsalfin ray. Counts of supraneurals, vertebrae, procurrent caudal-fin rays, unbranched
dorsal and anal fin rays, branchiostegal rays, gill-rakers, premaxillary, maxillary, and
dentary teeth were taken only from cleared and stained paratypes (C&S), prepared
according to Taylor and Van Dyke (1985). The four modified vertebrae that constitute
the Weberian apparatus were not included in the vertebra counts and the fused
PU1 + U1 was considered as a single element. Osteological nomenclature follows
Weitzman (1962). Institutional abbreviations follow Sabaj-Pérez (2016), with addition
of CICCAA Coleção Ictiológica do Centro de Ciências Agrárias e Ambientais and
CPUFMA Coleção de Peixes da Universidade Federal do Maranhão.
Comparative material examined
All specimens are from Brazil.
Hyphessobrycon amandae Géry & Uj, 1987: UFRJ 1557, 5 spcms, Goiás
State, Jussara municipality. H. bentosi: CICCAA 00849, 2 spcms, aquarium trade.
H. cf. bentosi: CICCAA 00701, 1 spcm, Pará State, Paragominas municipality.
CICCAA 00702, 2 spcms, Pará State, Paragominas municipality. CICCAA 00703,
1 spcm (C&S), Pará State, Paragominas municipality. H. bifasciatus Ellis, 1911:
UFRJ 0068, 6 spcms, Espírito Santo State, Marataízes and Guarapari municipality.
H. copelandi: CICCAA 00722, 2 spcms, Pará State, Marabá municipality.
H. diancistrus Weitzman, 1977: UFRJ 2166, 55 spcms, Tocantins State, Ilha do
Bananal municipality. H. eques: CICCAA 00715, 4 spcms (C&S), Minas Gerais
State, Tombos municipality. CICCAA 00710, 51 spcms, Minas Gerais State, Tombos
municipality. H. griemi Hoedeman, 1957: UFRJ 4496, 7 spcms, Santa Catarina State,
Esplanada municipality. H. haraldschultzi: CICCAA 00873, 20 spcms, Tocantins
State, Ilha do Bananal municipality. H. itaparicensis Lima & Costa, 2001: CICCAA
00314, 6 spcms, Sergipe State, Areia Branca municipality. Pristella maxillaris (Ulrey,
1894): CICCAA 00850, 2 spcms, aquarium trade. H. micropterus: FMNH 57916,
A new species of Hyphessobrycon Durbin from northeastern Brazil...
83
1 spcm, Rio São Francisco at Lagoa do Porto (Photograph of a Holotype). CICCAA
00300, 24 spcms, Bahia; Barras municipality. CICCAA 00699, 8 spcms (C&S), Barras,
Bahia municipality. H. reticulatus Ellis, 1911: UFRJ 0107, 4 spcms, Rio de Janeiro
State, Desengano municipality. H. sergipanus Bragança, Ottoni & Rangel-Pereira,
2016: CICCAA 00296, 11 spcms, Sergipe State, Estância municipality. UFRJ 5582,
8 spcms, Mato Grosso State, Poconé municipality. UFRJ 3937, 4 spcms, Mato Grosso
State, Cárceres municipality. H. stegemanni Géry, 1961: UFRJ 1988, 17 spcms,
Tocantins State, Porto Nacional municipality. H. sweglesi: CICCAA 00852, 2 spcms,
trade aquarium. H. wernerei: MUZUSP 42365, 1 spcm, Pará State, Santa Maria do
Pará municipality. CICCAA 00751, 1 spcm, Pará State, Paragominas municipality.
DNA extraction, amplification, and sequencing
DNA extraction was carried out with the Wizard Genomic DNA Purification kit (Promega) following manufacturer’s protocol. DNA quality was evaluated by agarose gel
electrophoresis stained with GelRed (Biotium) and was quantified using Nanodrop
2000 (Thermo Fisher Scientific). DNA was stored at -20 °C until further procedures.
Samples (N= 4; Table 1) were amplified using standard PCR (Polymerase Chain Reaction) for partial cytochrome oxidase subunit 1 (COI) gene, with primers designed
by Ward et al. (2005) (FISHF1 5´-TCAACCAACCACAAAGACATTGGCAC-3´and
FISHR1 5´-TAGACTTCTGGGTGGCCAAAGAATCA-3´). Amplification reactions
were performed in a total volume of 15 µl comprising 1× buffer, 1.5 mM MgCl2, 200
µM dNTP, 0.2 uM of each primer, 1 U of Taq Polymerase (Invitrogen), 100 ηg of
DNA template, and ultrapure water. The amplification program consisted of a denaturation of 2 min at 94 °C, followed by 35 cycles of 30s at 94 °C, 30s at 54 °C, and
1 min at 72 °C, ending in an extension phase of 10 min at 72 °C. Amplicons were
visualized in 1% agarose gel electrophoresis stained with GelRed (Biotium) and purified with Illustra GFX PCR DNA and Gel Purification Kit (GE Healthcare). Samples
were sequenced using both forward and reverse primers and BigDye Terminator kit 3.1
Cycle Sequencing kit (Thermo Fisher Scientific) in ABI 3730 DNA Analyser (Thermo
Fisher Scientific) Consensus sequences were edited in Geneious 9.0.5 (Kearse et al.
2012) and aligned using ClustalW (Thompson 1994) with those from Hyphessobrycon
species available in Barcode of Life Database (BOLD) and Genbank (NCBI-National
Center for Biotechonology Information) (accession numbers are in Table 1).
Species concept, species delimitation, and diagnoses
The unified species concept (de Queiroz 2005, 2007) is herein adopted by expressing
the conceptual definition shared by all traditional species concepts – “species are (segments of ) separately evolving metapopulation lineages” – when operational criterion
elements to delimit taxa are excluded from the concepts. According to this concept,
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Erick Cristofore Guimarães et al. / ZooKeys 765: 79–101 (2018)
Table 1. Sampling sites, specimens and DNA sequence information included in the study.
Species
Locality
Hyphessobrycon piorskii sp. n.
Hyphessobrycon piorskii sp. n.
Hyphessobrycon piorskii sp. n.
Hyphessobrycon piorskii sp. n.
Hyphessobrycon bentosi
Hyphessobrycon bentosi
Hyphessobrycon bentosi
Hyphessobrycon bentosi
Hyphessobrycon bentosi
Hyphessobrycon bentosi
Hyphessobrycon bentosi
Hyphessobrycon bentosi
Hyphessobrycon copelandi
Hyphessobrycon copelandi
Hyphessobrycon copelandi
Hyphessobrycon eques
Hyphessobrycon eques
Hyphessobrycon erythrostigma
Hyphessobrycon erythrostigma
Anapurus, Maranhão
Anapurus, Maranhão
Barreirinhas, Maranhão
Anapurus, Maranhão
Barcelos, Amazonas
Barcelos, Amazonas
Barcelos, Amazonas
Barcelos, Amazonas
Manaus, Amazonas
Manaus, Amazonas
Manaus, Amazonas
Manaus, Amazonas
Tabatinga, Amazonas
Tabatinga, Amazonas
Tabatinga, Amazonas
Santarém, Pará
Parintins, Amazonas
Tabatinga, Amazonas
Tabatinga, Amazonas
São Gabriel da Cachoeira,
Amazonas
São Gabriel da Cachoeira,
Amazonas
–
–
Santa Isabel do rio Negro,
Amazonas
Santa Isabel do rio Negro,
Amazonas
Santa Isabel do rio Negro,
Amazonas
Santa Isabel do rio Negro,
Amazonas
Santa Isabel do rio Negro,
Amazonas
São Gabriel da Cachoeira,
Amazonas
Nova Airão, Amazonas
São Gabriel da Cachoeira,
Amazonas
São Gabriel da Cachoeira,
Amazonas
São Gabriel da Cachoeira,
Amazonas
São Gabriel da Cachoeira,
Amazonas
Hyphessobrycon epicharis
Hyphessobrycon epicharis
Hyphessobrycon megalopterus
Hyphessobrycon megalopterus
Hyphessobrycon pyrrhonotus
Hyphessobrycon pyrrhonotus
Hyphessobrycon pyrrhonotus
Hyphessobrycon socolofi
Hyphessobrycon socolofi
Hyphessobrycon rosaceus
Hyphessobrycon rosaceus
Hyphessobrycon rosaceus
Hyphessobrycon sweglesi
Hyphessobrycon sweglesi
Hyphessobrycon sweglesi
Moenkhausia
hemigrammoides
Rupununi Road-Guyana
Basin/
Country
drainage
Munin
Brazil
Munim
Brazil
Preguiças Brazil
Munim
Brazil
Negro
Brazil
Negro
Brazil
Negro
Brazil
Negro
Brazil
–
Brazil
–
Brazil
–
Brazil
–
Brazil
Solimões Brazil
Solimões Brazil
Solimões Brazil
Amazonas Brazil
Amazonas Brazil
Solimões Brazil
Solimões Brazil
GenBank/
BoldSystems
MF765796
MF765797
MG791915
MG791914
HYP097-13
HYP098-13
HYP099-13
HYP100-13
HYP116-13
HYP117-13
HYP118-13
HYP119-13
HYP094-13
HYP095-13
HYP096-13
HYP070-13
HYP072-13
HYP073-13
HYP074-13
CICCAA00725
CICCAA00726
CICCAA01650
CICCAA01651
INPA37684-5939
INPA37684-5940
NPA37684-5942
INPA37684-5943
INPA39527-BA1
INPA39527-BA2
INPA39527-BA3
INPA39527-BA4
INPA37683-TU1
INPA37683-TU1
INPA37683-TU1
INPA37678-IC2
INPA37680-AL1
INPA37681-AP1
INPA37681-AP2
Catalog number
Negro
Brazil
HYP002-13
INPA37665-JUF1
Negro
Brazil
HYP003-13
INPA37665-JUF2
–
–
–
–
FJ749058
KU568879.1
Negro
Brazil
HYP039-13
Negro
Brazil
HYP040-13
Negro
Brazil
HYP042-13
–
–
INPA37672TRO1
INPA37672TRO10
INPA37672TRO2
Negro
Brazil
HYP020-13
INPA37667-UR1
Negro
Brazil
HYP022-13
INPA37667-UR7
Negro
Brazil
HYP032-13
Negro
Brazil
HYP069-13
INPA37669MAC4
INPA37677-FU1
Negro
Brazil
HYP082-13
INPA37682-ACA1
Negro
Brazil
HYP024-13
INPA37668-JAR1
Negro
Brazil
HYP025-13
INPA37668-JAR2
Negro
Brazil
HYP028-13
INPA37668-JAR5
–
Guyana
HYP101-13
INPA38532-PR1
A new species of Hyphessobrycon Durbin from northeastern Brazil...
Species
Pristella maxillaris
Pristella maxillaris
Hyphessobrycon flammeus
Hyphessobrycon anisitsi
Locality
–
–
–
–
Basin/
GenBank/
Country
drainage
BoldSystems
–
–
KU568982.1
–
–
KU568981.1
–
Brazil
FUPR988-09
–
Brazil GBGCA516-10
85
Catalog number
–
–
LBPV-40464
FJ749040
species are treated as hypothetical and could be tested by the application of distinct criteria (species delimitation methods) (de Queiroz 2005, 2007). It allows for any criteria
to separately provide evidence about species limits and identities, independently from
other criteria (de Queiroz 2005, 2007). Evidence corroborated from multiple operational criteria is considered to produce stronger hypotheses of lineage separation (de
Queiroz 2007, Goldstein and Desalle 2010), a practice called “integrative taxonomy”
(Dayrat 2005, Goldstein and Desalle 2010, Padial et al. 2010).
Two distinct operational criteria to delimit species, based on morphological and
molecular data, were implemented here. The Population Aggregation Analysis (Davis
and Nixon 1992) is a character-based method (hereafter PPA), which consists of an
exclusive shared combination of character states assigned to a given population or
group of populations. The second method, DNA barcoding, as proposed by Hebert et
al. (2003 a, b, 2004 a, b) (hereafter DBC), is a genetic distance-based cut-off method.
Population Aggregation Analysis (PAA)
Only morphological character states were used for this method. The morphological
data was based on both examined material (see Comparative material examined) and
the literature (e.g., Géry 1977, Géry and Uj 1987, Costa and Géry 1994, Plaquete et
al. 1996, Weitzman and Palmer 1997, Zarske 2008, Hein 2009, Carvalho 2011, Lima
et al. 2013, Zarske 2014, Carvalho and Malabarba 2015, Carvalho et al. 2017). The
data obtained by this method are presented in the diagnosis section of results.
DNA barcoding (DBC)
Pairwise genetic distances between species were calculated using Kimura-2-parameters
model (K2P) (Kimura 1980) on the MEGA 7 software (Tamura et al. 2011). Evolutionary relationships among sequences were reconstructed by Bayesian inference using the
MrBayes (Huelsenbeck and Ronquist 2001) plugin in Geneious 9.0.5. An independent
run with a chain length of 10 million, a burn-in length of 500,000 generations, and
subsampling trees every 10,000 generations was carried out under the GTR (generalized time reversible) evolutionary model, which was estimated in jmodeltest (Darriba
et al. 2012). Hyphessobrycon flammeus Myers, 1924 and H. anisitsi (Eigenmann, 1907)
were used as outgroup. The ingroup was composed by the remaining terminals.
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Erick Cristofore Guimarães et al. / ZooKeys 765: 79–101 (2018)
Results
Hyphessobrycon piorskii sp. n.
http://zoobank.org/379CFBEA-C3FE-4729-9469-029732DC62BC
Figures 1, 2
Holotype. CICCAA 00695, 25.9 mm SL, Brazil, Maranhão State: stream at the Anapurus municipality, 03°40'14"S, 43°07'10"W, 05 Feb 2017, Guimarães E. C. and
Brito P. S.
Paratypes. All from Brazil, Maranhão State: CICCAA 00430, 15,18.4–25.2 mm SL;
CICCAA 00696, 15, 19.9–24.4mm SL, CICCAA 00697, 16 (C&S) 19.3–24.5 mm SL;
CICCAA 00698, 6, 1 (C&S) 22.0–20.4 mm SL; CICCAA 00750, 9, 20.0–25.3mm SL;
CPUFMA 171664, 15, 19.5–23.1 mm SL; UFRJ 11553, 6, 19.1–22.1 mm SL collected
with holotype. CICCAA 00089, 1 (C&S) 25.2 mm SL, stream at Mata de Itamacaoca,
Chapadinha municipality; 03°44'50"S, 43°19'21"W, 02 Apr. 2016, Ottoni F. P., Oliveira E., Nascimento I., Fernandes R., Carneiro V. leg. CICCAA 00431, 21, 15.3–19.8mm
SL, stream at the Anapurus municipality, 03°40'53"S, 43°07'23”W, 15 Jan. 2017, W;
Aguiar R. leg. CICCAA 00881, 1, 29.4 mm SL, stream at Mata de Itamacaoca, Chapadinha municipality; 03°44'45"S, 45°19'15”W, 15 Jul. 2017, Campos D., Oliveira E.,
Viana S., Lopes M., Sousa R. leg. CICCAA 01563, 1, 21.6 mm SL, stream at Mata de
Itamacaoca, Chapadinha municipality; 03°44'55"S 43°19'55"W, 19 Nov. 2017, Guimarães E. C., Brito P. S., Ottoni F. P., Lucas O., Sousa R. leg. CICCAA01654, 1, 26.9 mm
SL, stream at the Anapurus municipality, 03°40'14"S, 43°07'10"W, 17 Jan. 2018, Guimarães E. C. and Brito P. S. leg. CICCAA 01382, 5, 22.7–27.2 mm SL, stream at Mata
Fome, Barreirinhas municipality, 02°39'47"S, 42°48'16"W, 15 Jun., 2017, Guimarães E.
C., Brito P. S., Ottoni F. P., Ferreira B. R. CICCAA 02008, 12 (C&S), 15.4–18.3 mm
SL, stream at Mata Fome, Barreirinhas municipality; 02°39'47"S, 42°48'16"W, 15 Jun.,
2017, Guimarães E. C., Brito P. S., Ottoni F. P., Ferreira B. R. leg.
Diagnosis (PAA). The new species Hyphessobrycon piorskii sp. n., promptly differs
from most congeners except by species of Hyphessobrycon sensu stricto by the presence
of a dark brown or black blotch on dorsal fin (vs. absence), no midlateral stripe on the
body (vs. presence) and Weberian apparatus upward horizontal through dorsal margin
of operculum (vs. downward).
The new species herein described differs from all of its congeners from Hyphessobrycon sensu stricto, with exception to H. bentosi and H. hasemani, by possessing an
inconspicuous vertically elongated humeral spot [vs. approximately rounded humeral
spot in H. copelandi, H. erythrostigma, H. jackrobertsi, H. minor, H. pando, H. paepkei,
H. pyrrhonotus, H. roseus, H. socolofi, and H. sweglesi; humeral spot horizontally or posteriorly elongated in H. epicharis, H. khardinae, and H. werneri; conspicuous humeral
spot in H. eques, H. haraldschultzi Travassos, 1960, H. micropterus, H. megalopterus,
H. simulatus and H. takasei; and absence of humeral spot in H. compresus, H. dorsalis
Zarske, 2014, H. georgettae, H. pulchripinnis, and H. rosaceus].
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Figure 1. Hyphessobrycon piorskii sp. n. A CICCAA 00695, holotype, 25.9 mm SL, Brazil: Maranhão
State: Munim River basin B CICCAA 00881, paratype, 29.4 mm SL, Brazil: Maranhão State: Munim
River basin (photographed by Felipe Ottoni).
The new species differs from H. bentosi by the absence of an extended and pointed
dorsal and anal-fin tips (Figures 1, 2) [vs. extended and pointed dorsal and anal-fin
tips]; and from H. hasemani by the dorsal-fin black spot shape, which is located approximately at the middle of the fin’s depth, not reaching its tip [vs. extended along all
the fin, reaching its tip in adults] and by presenting tri to unicuspid teeth in the inner
row of premaxillary and dentary [vs. pentacuspid teeth].
Description. Morphometric data of holotype and paratypes are presented in
Table 3. Body compressed, moderately deep, greatest body depth slightly anterior to
dorsal-fin base. Body profile straight and downward directed from end of dorsal fin to
adipose fin, straight or slightly convex between later point and origin of dorsal most
procurrent caudal-fin ray. Dorsal profile of head convex from upper lip to vertical
through eye; predorsal profile of body roughly straight, dorsal-fin base slightly convex,
posteroventrally inclined; ventral profile of head convex from lower jaw to pelvic-fin
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Figure 2. Hyphessobrycon piorskii sp. n. A CICCAA 00698, paratype, 26.9 mm SL, Brazil: Maranhão
State: Munim River basin; living specimen photographed immediately after collection B CICCAA 00089,
paratype, 25.2 mm SL, Brazil: Maranhão State: Munim River basin; living specimen photographed immediately after collection (photographed by Felipe Ottoni).
origin. Ventral profile of body straight or slightly convex from pelvic-fin origin to anal-fin
origin; straight and posterodorsally slanted along anal-fin base; and slightly concave on
caudal peduncle. Jaws equal, mouth terminal, anteroventral end of dentary protruding.
Maxilla reaching vertical to anterior margin of pupil. Premaxillary teeth in two rows.
Outer row with one tricuspid tooth; inner row with 6(6), 7(20) or 8(4) tricuspid teeth
and one unicuspid tooth. Maxilla with 3(5), 5(24) or 6(1) tricuspid teeth. Dentary with
five (21) or six (9) larger tricuspid teeth followed by one smaller tricuspid teeth 5(2),
6(6), 7(13), 8(5), 9(4) smaller unicuspid teeth (Figure 3). Scales cycloid, three to eight
radii strongly marked, circuli well-marked anteriorly, weakly-marked posteriorly; lateral
line incompletely pored, with 6(19), 7(62) or 8(13) perforated scales. Longitudinal scales
series including lateral-line scales 31(9), 32(34), 33(26), 34(17) or 35(3). Longitudinal
scales rows between dorsal-fin origin and lateral line 6(49) or 7(41). Horizontal scale
A new species of Hyphessobrycon Durbin from northeastern Brazil...
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Figure 3. Hyphessobrycon piorskii sp. n. CICCAA 00697, 19.3 mm SL; jaw suspensory: A Premaxillary.
B Maxilla C Dentary (Photographed by Erick Guimarães).
rows between lateral line and pelvic-fin origin 4(18) or 5(71). Scales in median series
between tip of supraoccipital spine and dorsal-fin origin 8(6), 9(14), 10(7) or 11(3).
Circumpeduncular scales 11(16), 12(38) or 13(11). Dorsal-fin rays i + 10(105) or ii
+ 10(18). First dorsal-fin pterygiophore main body located behind neural spine of 4th
vertebrae. Adipose fin present. Anteriormost anal-fin pterygiophore inserting posterior
to haemal spine of 11th vertebrae. Anal-fin ii+24(3), iii+24(87), ii-25(32) or iii+25(1).
Anterior anal-fin margin slightly convex, with anteriormost rays more elongate and
slightly more thickened than remaining rays, forming a distinct lobe. Remaining rays
smaller with straight distal margin. Anal-fin rays with a sexually dimorphic pattern,
which are absent in females (Figure 4). Pectoral fin-rays 12(122) or 13(1) total rays. Tip
of pectoral fin usually reaching vertical through pelvic-fin origin. Pelvic-fin rays 8(125)
total rays. Pelvic-fin rays with a sexually dimorphic pattern, which are absent in females
(Fig. 5). Caudal fin forked, upper and lower lobes similar in size. Principal caudal-fin rays
10+9(121), 10+10(7) or 11+10(17); dorsal procurrent rays 7(1), 9(13), 10(13) or 11(3)
and ventral procurrent rays 6(1), 7(8), 8(12) or 9(9). Branchiostegal rays 4(30). First
gill arch with 1(1), 2(29) hypobranchial, 11(1), 12(28) or 13(1) ceratobranchial, 1(30)
on cartilage between ceratobranchial and epibranchial, and 5(1) or 6(16) epibranchial
gill-rakers. Supraneurals 3(2) 4(23) or 5(5). Total vertebrae 29(30).
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Color in alcohol Figure 1. Ground coloration light yellowish brown. Humeral
region with one inconspicuous vertically elongated spot; more intensely pigmented
on its central portion. Flank with chromatophores homogeneously scattered, more
concentrated on posterior region to humeral spot, posterior region of dorsal-fin base
origin and below mid-portion of trunk, between anal-fin origin and caudal peduncle. Ventral region lacking dark brown chromatophores. Dark brown chromatophores
present on head and more concentrated on dorsal portion, becoming sparser on cheek
and preopercular regions.
Dorsal fin ground coloration hyaline, with a conspicuous black or dark brown spot
located on anterior portion of fin, reaching about sixth ray, approximately between half
to two thirds of fin depth. Anal and caudal fins hyaline. Caudal fin with a darker, usually dark brown, posterior margin and on its base. Adipose fin hyaline to light brown,
with dark brown or black chromatophores more concentrated on its dorsal portion,
depending on the state of preservation of the specimen. Pectoral and pelvic fins hyaline; pelvic fin with variable amounts dark brown pigmentation remaining depending
on the state of preservation of the specimen.
Color in life (Figure 2). Pattern similar to coloration of preserved specimens.
Ground coloration light yellowish brown to grey, with a reddish-brown pigmentation
on vertebrae region, and usually with red chromatophores. Ventral region anterior to
anal-fin origin lighter. Humeral spot inconspicuously dark brown or black. Head with
same coloration as body, and ventrally lighter.
Conspicuous black spot on dorsal-fin, with yellow or orange pigmentation on
dorsal and ventral margins of spot; yellow or orange pigmentation lighter and less
evident on dorsal margin, reaching half to two thirds of the spot length and extending to the tip of fin; yellow or orange pigmentation darker and more developed at
ventral margin of the spot, reaching entire spot base length, not extended to dorsal
fin-base. Rest of dorsal fin hyaline. Anal-fin base with red pigmentation, with different degrees of intensity, with milk white pigmentation on anterior tip of anal fin,
which could be extended through entire anterior margin, reaching between second to
fourth rays. Posterior margin of anal fin with an inconspicuous dark brown pigmentation. Adipose fin light brown to hyaline at base, with red to black pigmentation at
tip. Pectoral and pelvic fins hyaline, with some sparser dark brown chromatophores,
more concentrated at pelvic fin base. First ray of pelvic fin with a white pigmentation. Caudal fin with red pigmentation on almost fin, with an inconspicuous light
brown, reddish brown or dark brown margin.
Sexual dimorphism. Mature males have hooks on anal-fin and pelvic-fin rays.
Hooks absent on females. Anal-fin presenting hooks from 3rd, 4th or 5th rays through
last ray. Number of hooks variable, increasing from the first ones to the last rays. Pelvic
fin presenting 3rd and 4th rays with 5 smaller hooks (Figures 4, 5).
DNA-based identification. After trimming sequence ends with poor base call
quality, the final alignment yielded 446 base pairs with 154 variable sites, and 22
haplotypes. The magnitude of sequence divergence clearly demonstrates the exist-
A new species of Hyphessobrycon Durbin from northeastern Brazil...
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Figure 4. Hyphessobrycon piorskii sp. n. CICCAA 00697, male, 19.3 mm SL, bony hooks on anal fin
(photographed by Erick Guimarães).
ence of a new species of Hyphessobrycon inhabiting the Munim and Preguiças river
basins in Maranhão State. Average genetic distances were 14.2%, with the highest
values between H. pyrrhonotus and H. epicharis (19.2%), while the lowest value
(2.7%) was between H. epicharis and H. sweglesi (Table 1). Hyphessobrycon piorskii
sp. n. has 17% sequence divergent, on average, from the other taxa, with a minimum distance with H. eques (13.9%) and a maximum with H. rosaceus (18.4%)
(Table 2).
Other evidence for the new species is that H. piorskii sp. n. formed a single and
exclusive clade with maximum posterior probability support (posterior probability =
1) in the Bayesian phylogenetic tree (Figure 7). Furthermore, H. piorskii sp. n. clade is
located within the Hyphessobrycon s. str. group with high support of posterior probability (0.94). Hyphessobrycon piorskii sp. n. was recovered as the sister-group of the clade
including H. bentosi, H. socolofi, H. megalopterus, H. erythrostigma and H. pyrrhonotus,
with branch support of posterior probability value of 0.55. Pristella maxillaris and
Moenkhausia hemigrammoides formed a clade (posterior probability value = 0.86), and
it was recovered as the sister-clade of the Hyphessobrycon s. str. group (posterior probability value = 0.6).
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Figure 5. Hyphessobrycon piorskii sp. n. CICCAA 00697, male, 19.3 mm SL, bony hooks on pelvic fin
(photographed by Erick Guimarães).
Geographical distribution. Hyphessobrycon piorskii sp. n. is presently known
only from the upper Munim and Preguiças river basins, Maranhão State, northeastern Brazil (Figure 7).
Ecological notes. Hyphessobrycon piorskii sp.n. lives in shallow well-oxygenated
streams with transparent waters flowing over different types of substrates (Figure 8).
The streams where H. piorskii sp. n. specimens were collected varied from 0.90 to 10
meters wide, with a maximum depth of 1.60 meters. They possessed moderate water
currents (0.1–0.7 m/s), with clear, sandy substrates with pebbles, mud, leaf litter, and
submerged logs, often also presenting aquatic macrophytes. Hyphessobrycon piorskii
sp. n. was found near shore among aquatic vegetation, tree roots and fallen logs.
Other species found at both sites were Anablepsoides vieirai Nielsen, 2016, Apistogramma piauiensis Kullander, 1980, Astyanax sp., Cichlasoma cf. zarskei, Copella arnoldi (Regan, 1912), Crenicichla brasiliensis (Bloch, 1792), Hoplias malabaricus (Bloch,
1794), Megalechis thoracata (Valenciennes, 1840), Nannostomus beckfordi Günther,
1872, and Synbranchus marmoratus Bloch, 1795. Gut contents of C&S specimens
contained algae and disarticulated arthropod remains.
Etymology. The name piorskii honors the ichthyologist Nivaldo Magalhães Piorski
for his contributions to the ichthyologic knowledge of the Maranhão State.
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Table 2. Kimura-2 parameters pairwise genetic distances among species. Species names in the
upper columns are abbreviated as follows: H. piorskii (Hpio), H. flammeus (Hfla), H. anisitsi (Han),
H. socolofi (Hsoc), H. copelandi (Hcop), H. bentosi (Hben), H. megalopterus (Hmeg), H. eques (Hequ),
H. erythrostigma (Hery), H. pyrrhonotus(Hpyr), H. rosaceus (Hros), H. sweglesi (Hswe), H. epicharis (Hepi),
M. hemigrammoides (Mhem), and P. maxillaris (Pmax).
Species
Hfla
Hani
Hsoc
Hcop
Hben
Hmeg
Hequ
Hery
Hpyr
Hros
Hswe
Hepi
Mhem
Pmax
Hpio
0.190
0.194
0.199
0.158
0.207
0.195
0.161
0.196
0.183
0.218
0.205
0.199
0.185
0.223
Hfla
0.165
0.193
0.206
0.204
0.209
0.205
0.213
0.206
0.212
0.187
0.190
0.204
0.212
Hani Hsoc Hcop Hben Hmeg Hequ Hery Hpyr Hros Hswe Hepi Mhem
0.168
0.162
0.173
0.180
0.186
0.182
0.166
0.205
0.195
0.198
0.178
0.197
0.216
0.008
0.087
0.190
0.114
0.101
0.224
0.224
0.221
0.214
0.203
0.221
0.213
0.102
0.191
0.191
0.202
0.198
0.198
0.216
0.219
0.086
0.194
0.117
0.103
0.227
0.229
0.226
0.219
0.207
0.199
0.131
0.117
0.204
0.192
0.199
0.234
0.218
0.174
0.181
0.195
0.183
0.183
0.205
0.200
0.032
0.219
0.216
0.233
0.233
0.230
0.221
0.211
0.231
0.222
0.239
0.073
0.089 0.028
0.200 0.204 0.208
0.202 0.187 0.181 0.169
Table 3. Morphometric data (N = 95) for the holotype and paratypes of Hyphessobrycon piorskii sp. n.
from the Munim River basin and Preguiças River basin. Abbreviations: SD: Standard deviation.
Standard length
Percentages of standard length
Depth at dorsal-fin origin (body depth)
Snout to dorsal-fin origin
Snout to pectoral-fin origin
Snout to pelvic-fin origin
Snout to anal-fin origin
Caudal peduncle depth
Caudal peduncle length
Pectoral-fin length
Pelvic-fin length
Dorsal-fin base length
Dorsal-fin height
Anal-fin base length
Eye to dorsal-fin origin
Dorsal-fin origin to caudal-fin base
Head length
Percentages of head length
Horizontal eye diameter
Snout length
Least interorbital width
Upper jaw length
Holotype
25.9
Paratypes
18–29.4
Mean
20.8
SD
–
35.9
49.8
29.1
47.5
61.9
11.8
12.2
20.4
18.1
15.5
28.5
29.4
35.2
50.7
26.3
28.9–39.4
44.2–56.5
26.0–35.0
39.1–52.2
57.4–66.6
9.1–14.1
8.1–13.6
16.8–23.7
13.3–20.4
12.9–18.3
22.1–34.3
26.3–33.9
33.6–39.4
44.9–57.3
24.2–33.4
33.4
52.5
30.8
47.5
61.7
11.4
10.2
20.8
17.1
15.7
29.9
30.3
36.4
51.4
29.3
1.9
2.1
2.3
1.9
1.8
0.9
1.1
1.6
1.5
1.2
2.4
1.4
1.4
2.3
2.1
42.8
22.0
25.7
39.6
33.4–43.8
16.9–24.4
16,4–27.0
32.8–41.7
38.2
20.2
20.4
38.1
2.3
1.7
2.2
2.2
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Discussion
Despite Hyphessobrycon, as defined today, being a non-monophyletic group (Mirande
2010, Oliveira et al. 2011, Carvalho et al. 2017, Ohara et al. 2017, Moreira and Lima
2017), a few putative groups within the genus were proposed in the literature. One
such case is the Hyphessobrycon sensu stricto as defined by Carvalho (2011) and Cavalho
and Malabarba (2015). According to those authors, this group is composed by approximately 25 species.
Among the species considered by Weitzman and Palmer (1997) as possibly related
to the “rosy tetra clade”, only H. hasemani and H. pulchripinnis were considered to
belong to Hyphessobrycon sensu stricto (Carvalho 2011, Carvalho and Malabarba 2015).
Pristella maxillaris (Ulrey, 1894) is the sister-group of the Hyphessobrycon sensu stricto
(Carvalho 2011), and corroborated in our analysis (Figure 6).
Hyphessobrycon piorskii sp. n. exhibits all the diagnostic features that define Hyphessobrycon sensu stricto (see introduction and diagnosis section). The new species differs
from the other possible species of this assemblage, which also occur near Maranhão
(e.g., lower Amazon River basin, Guamá River basin, and São Francisco River basin),
such as H. bentosi, H. copelandi, H. eques, H. dorsalis, H. hasemani, H. haraldschultzi,
H. micropterus, and H. werneri, by a set of features listed below.
Hyphessobrycon piorskii sp. n. possesses an inconspicuous vertically elongated humeral spot, distinguishing it from all the species cited above, except for H. bentosi and
H. hasemani (see morphological diagnosis section). The shape of the dorsal-fin spot is
also useful to distinguish H. piorskii sp. n. from H. eques, H. hasemani and H. micropterus, which possess dorsal fin spot vertically extended, reaching the tip of the fin, while
in H. piorskii sp. n. the black spot of dorsal fin never reaches the tip of the fin. The new
species also differs from H. eques by the color pattern of the anal fin: H. eques possess
a conspicuous black anal-fin margin on preserved species, while H. piorskii sp. n. does
not exhibit this feature at the anal fin.
The number of teeth cusps was also revealed to be a useful feature for species discrimination. Hyphessobrycon piorskii sp. n. possess all of its teeth with one to three cusps
(never pentacuspid), while H. eques possess pentacuspid teeth on the maxillary and inner
row of premaxillary, and H. copelandi and H. hasemani on the dentary and inner row of
the premaxilla (see Lima et al. 2013). The new species differs from H. bentosi by not having extended and pointed dorsal and anal-fin tips and by having bone hooks on anal-fin
rays of mature males (Figure 3). The dorsal and anal fins of H. bentosi have pointed and
extended tips, and it has not bony hooks on anal-fin rays (see Carvalho 2011, Zarske
2014). Hyphessobrycon copelandi possesses only ten teeth on the dentary, and dorsal-fin
black spot reaching to the posterior margin of the fin (see Lima et al. 2013), while H.
piorskii sp. n. possesses 11–15 teeth on dentary, and dorsal-fin black spot restricted to the
anterior half of the fin’s length. In addition, Hyphessobrycon piorskii sp. n. is easily distinguished from the sister-species of the clade Hyphessobrycon sensu stricto, P. maxillaris and
M. hemigrammoides, by the absence of a black oblique stripe or band on the anterior portion of the anal fin (Figures 1, 2) [vs. presence (Carvalho et al. 2017, figure 7; pers. obs.)].
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Figure 6. Bayesian phylogenetic tree including Hyphessobrycon piorskii sp. n (in red) and other congeners.
Number above branches are posterior probability values.
Figure 7. Geographical distribution of Hyphessobrycon piorskii sp. n. Red circle denote Holotype and
black circle denote paratypes.
The description of H. piorskii sp. n. was based on morphological and molecular
species delimitation methods, using the congruence of multiple operational criteria
for determining species boundaries. As mentioned earlier, evidence corroborated from
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Figure 8. Collecting sites of Hyphessobrycon piorskii sp. n. A stream at the Anapurus municipality
B stream at Mata de Itamacaoca C stream at Mata de Itamacaoca D stream at Mata Fome, Barreirinhas
municipality (photographed by Felipe Ottoni).
multiple operational criteria is considered to produce stronger hypotheses of lineage
divergence (de Queiroz 2007, Goldstein and Desalle 2010), thus congruent to the proposal for an integrative taxonomy (Goldstein and Desalle 2010, Padial et al. 2010). The
morphological criteria (PAA) distinguished the new species from all of the other congeners by unambiguous character states (see diagnosis). The DNA barcoding (DBC)
criteria also revealed that H. piorskii sp. n. is a new species with an average sequence
divergence of 17% from the other taxa (Table 2). In addition, H. piorskii sp. n. is placed
in an exclusive and highly supported clade in the Bayesian tree (Figure 6). Haplotypes
clustered as an exclusive and high supported group, with geographical concordance
area is evidence of lineage divergence, therefore a good and strong evidence for delimit
species, and consequently describe them (Wiens and Penkrot 2002, Costa et al. 2014).
Our Bayesian tree also recovered H. piorskii sp. n. within the Hyphessobrycon sensu
stricto group with high support (posterior probability = 0.94), which fits the morphological evidence, since H. piorskii sp. n. exhibits the three main diagnostic character
states of the group (see introduction and diagnosis section). Hyphessobrycon piorskii sp.
n. was recovered as the sister-group of the clade including H. bentosi, H. socolofi, H.
megalopterus, H. erythrostigma, and H. pyrrhonotus, however this relationship was supported by a lower support value (posterior probability value = 0.55). Only posterior
probability values about or higher than 0.95 are considered as statistically significant
A new species of Hyphessobrycon Durbin from northeastern Brazil...
97
(Alfaro and Holder 2006). Therefore, any discussion about the relationship and supposed shared morphological features between H. piorskii sp. n. and this clade is speculative (Figure 7). To a better understanding of the internal relationships of the group,
an analysis including more genes, especially from nuclear genome, is highly recommended. However, this was not the scope of the present paper. Pristella maxillaris and
Moenkhausia hemigrammoides were recovered as the sister-clade of the Hyphessobrycon
sensu stricto group, corroborating partially the results of Carvalho et al. (2011) and
Carvalho and Malabarba (2015), who argue that P. maxillaris is the sister-clade of the
Hyphessobrycon sensu stricto group.
Acknowledgements
We thank Wilson Costa for the loan and donation of material; Riccardo Mugnai for
his assistance with osteological photographs; Ingo Schindler for providing useful literature; Vale S.A and Amplo Engenharia for the cession of part of the data analysed in this
study; We also thank Pensoft and Clarisse Figueiredo for her English revisions; Elioenai
Oliveira, Ivanilda Nascimento, Rozijane Fernandes, Valquíria Carneiro, Shyrley Viana,
Marciara Lopes, Revangivaldo Sousa, Diego Campos, Pedro Bragança, Beldo Ferreira
and Lucas Oliveira for collecting the examined material. This paper benefited from
suggestions provided by Javier Maldonado and two reviewers: Jorge Enrique García
Melo and Carlos García-Alzate. This study was supported by CNPq (National Council for Scientific and Technological Development – Ministry of Science, Technology
Innovation and Communication) and FAPEMA (Foundation for Scientific Research
and Development of Maranhão). We also thank FACEPE (Fundação de Amparo à
Ciência e Tecnologia do Estado de Pernambuco) for providing a scholarship to LMF.
All material was collected with permits 51540-3/ from SISBIO (Brazilian Institute of
Environment and Natural Resources).
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