Freshwater limpet (Ancylus fluviatilis) in a river. This species actually is more closely related to horned snails than marine limpets and can breath air. River Flumendosa, Gennargentu National Park, Sardinia, Italy. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/freshwater-limpet-ancylus-fluviatilis-in-a-river-this-species-actually-is-more-closely-related-to-horned-snails-than-marine-limpets-and-can-breath-air-river-flumendosa-gennargentu-national-park-sardinia-italy-image262974799.html
RMW7RF13–Freshwater limpet (Ancylus fluviatilis) in a river. This species actually is more closely related to horned snails than marine limpets and can breath air. River Flumendosa, Gennargentu National Park, Sardinia, Italy.
Lake limpet underwater on green stem Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/lake-limpet-underwater-on-green-stem-image154296813.html
river limpet (Acroloxidae), sitting on a river shingle, Germany, Bavaria, Isental Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-river-limpet-acroloxidae-sitting-on-a-river-shingle-germany-bavaria-47900840.html
RMCNX208–river limpet (Acroloxidae), sitting on a river shingle, Germany, Bavaria, Isental
River limpet (Ancylus fluviatilis) Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/river-limpet-ancylus-fluviatilis-image595378660.html
RF2WGHRFG–River limpet (Ancylus fluviatilis)
A marine snail, limpet on the back wall of an aquarium. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-marine-snail-limpet-on-the-back-wall-of-an-aquarium-image483632740.html
RF2K2RADT–A marine snail, limpet on the back wall of an aquarium.
Explore Kendal. River Kent, Information Board 3. Stramongate Weir, Kendal, Cumbria, England, United Kingdom, Europe. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-explore-kendal-river-kent-information-board-3-stramongate-weir-kendal-47802965.html
RMCNNH4N–Explore Kendal. River Kent, Information Board 3. Stramongate Weir, Kendal, Cumbria, England, United Kingdom, Europe.
Solar Fairy-wrasse (Cirrhilabrus solorensis) adult, swimming, Alor Island, Alor Archipelago, Lesser Sunda Islands, Indonesia Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/solar-fairy-wrasse-cirrhilabrus-solorensis-adult-swimming-alor-island-alor-archipelago-lesser-sunda-islands-indonesia-image543856583.html
RM2PGPPHB–Solar Fairy-wrasse (Cirrhilabrus solorensis) adult, swimming, Alor Island, Alor Archipelago, Lesser Sunda Islands, Indonesia
Explore Kendal. River Kent, Information Board 2. Abbot Hall, Kendal, Cumbria, England, United Kingdom, Europe. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-explore-kendal-river-kent-information-board-2-abbot-hall-kendal-cumbria-47803026.html
RMCNNH6X–Explore Kendal. River Kent, Information Board 2. Abbot Hall, Kendal, Cumbria, England, United Kingdom, Europe.
Closeup of limpets on the seashore Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/closeup-of-limpets-on-the-seashore-image385120580.html
RF2DAFN6C–Closeup of limpets on the seashore
Explore Kendal. River Kent, Information Board 1. Romney Bridge, Kendal, Cumbria, England, United Kingdom, Europe. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-explore-kendal-river-kent-information-board-1-romney-bridge-kendal-47802984.html
RMCNNH5C–Explore Kendal. River Kent, Information Board 1. Romney Bridge, Kendal, Cumbria, England, United Kingdom, Europe.
ram s horn apple snail pouch shell water snail common planorbis staircase apple shell river limpet Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-ram-s-horn-apple-snail-pouch-shell-water-snail-common-planorbis-staircase-24659610.html
RMBC39GA–ram s horn apple snail pouch shell water snail common planorbis staircase apple shell river limpet
Explore Kendal. River Kent, Information Board 4. Dockray, Kendal, Cumbria, England, United Kingdom, Europe. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-explore-kendal-river-kent-information-board-4-dockray-kendal-cumbria-47803001.html
RMCNNH61–Explore Kendal. River Kent, Information Board 4. Dockray, Kendal, Cumbria, England, United Kingdom, Europe.
Acroloxus lacustris - baby lake limpet on a wood Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/acroloxus-lacustris-baby-lake-limpet-on-a-wood-image443732237.html
RF2GNWMYW–Acroloxus lacustris - baby lake limpet on a wood
under surface of lympet a foot b mantle c gills d mouth e tentacles Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-under-surface-of-lympet-a-foot-b-mantle-c-gills-d-mouth-e-tentacles-24632028.html
RMBC22B8–under surface of lympet a foot b mantle c gills d mouth e tentacles
Ancylus fluviatilis, Print, Ancylus fluviatilis is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/ancylus-fluviatilis-print-ancylus-fluviatilis-is-a-species-of-very-small-freshwater-air-breathing-limpet-an-aquatic-pulmonate-gastropod-mollusk-in-the-tribe-ancylini-within-the-family-planorbidae-the-rams-horn-snails-and-their-allies-image328665599.html
RM2A2M093–Ancylus fluviatilis, Print, Ancylus fluviatilis is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies
Shell patterns on rocks in St Ives, Cornwall. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/shell-patterns-on-rocks-in-st-ives-cornwall-image7273643.html
RMAAYJJC–Shell patterns on rocks in St Ives, Cornwall.
Ancylus fluviatilis, Print, Ancylus fluviatilis is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies., Reimagined by Gibon, design of warm cheerful glowing of brightness and light rays radiance. Classic art reinvented with a modern twist. Photography inspired by futurism, embracing dynamic energy of modern technology, movement, speed and revolutionize culture. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/ancylus-fluviatilis-print-ancylus-fluviatilis-is-a-species-of-very-small-freshwater-air-breathing-limpet-an-aquatic-pulmonate-gastropod-mollusk-in-the-tribe-ancylini-within-the-family-planorbidae-the-rams-horn-snails-and-their-allies-reimagined-by-gibon-design-of-warm-cheerful-glowing-of-brightness-and-light-rays-radiance-classic-art-reinvented-with-a-modern-twist-photography-inspired-by-futurism-embracing-dynamic-energy-of-modern-technology-movement-speed-and-revolutionize-culture-image349751893.html
RF2B90G31–Ancylus fluviatilis, Print, Ancylus fluviatilis is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies., Reimagined by Gibon, design of warm cheerful glowing of brightness and light rays radiance. Classic art reinvented with a modern twist. Photography inspired by futurism, embracing dynamic energy of modern technology, movement, speed and revolutionize culture.
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCII : FRESHWATER LIMPET SNAILS 441 habitat. Tlie specimens I have dissected, mostly from Michigan, have been heavily pigmented. The radnla is about the same as that of F. rivularis. Rcmorl-s: The large size, characteristically elongated sliell shape, lentic habitat, and restricted distribution distinguish this species from other Ferrissia, and I believe it to be a distinct, though variable, species. It appears to be a direct descendant of 7^. rivularis.. Fig. 19. Ferrissia parallela, tvpicnl specimens. Howe Lake, O Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-of-the-museum-of-comparative-zoology-at-harvard-college-zoology-bascii-freshwater-limpet-snails-441-habitat-tlie-specimens-i-have-dissected-mostly-from-michigan-have-been-heavily-pigmented-the-radnla-is-about-the-same-as-that-of-f-rivularis-rcmorl-s-the-large-size-characteristically-elongated-sliell-shape-lentic-habitat-and-restricted-distribution-distinguish-this-species-from-other-ferrissia-and-i-believe-it-to-be-a-distinct-though-variable-species-it-appears-to-be-a-direct-descendant-of-7-rivularis-fig-19-ferrissia-parallela-tvpicnl-specimens-howe-lake-o-image233900673.html
RMRGF2KD–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCII : FRESHWATER LIMPET SNAILS 441 habitat. Tlie specimens I have dissected, mostly from Michigan, have been heavily pigmented. The radnla is about the same as that of F. rivularis. Rcmorl-s: The large size, characteristically elongated sliell shape, lentic habitat, and restricted distribution distinguish this species from other Ferrissia, and I believe it to be a distinct, though variable, species. It appears to be a direct descendant of 7^. rivularis.. Fig. 19. Ferrissia parallela, tvpicnl specimens. Howe Lake, O
Lake limpet underwater on green stem Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/lake-limpet-underwater-on-green-stem-image154296832.html
River limpet (Ancylus fluviatilis) Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/river-limpet-ancylus-fluviatilis-image595378742.html
RF2WGHRJE–River limpet (Ancylus fluviatilis)
Solar Fairy-wrasse (Cirrhilabrus solorensis) adult, swimming, Gereja Tua, Pura Island, Alor Archipelago, Lesser Sunda Islands, Indonesia Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/solar-fairy-wrasse-cirrhilabrus-solorensis-adult-swimming-gereja-tua-pura-island-alor-archipelago-lesser-sunda-islands-indonesia-image543856586.html
RM2PGPPHE–Solar Fairy-wrasse (Cirrhilabrus solorensis) adult, swimming, Gereja Tua, Pura Island, Alor Archipelago, Lesser Sunda Islands, Indonesia
Ancylus fluviatilis, Print, Ancylus fluviatilis is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/ancylus-fluviatilis-print-ancylus-fluviatilis-is-a-species-of-very-small-freshwater-air-breathing-limpet-an-aquatic-pulmonate-gastropod-mollusk-in-the-tribe-ancylini-within-the-family-planorbidae-the-rams-horn-snails-and-their-allies-image328665601.html
RM2A2M095–Ancylus fluviatilis, Print, Ancylus fluviatilis is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies
Seashell patterns on rocks in St Ives, Cornwall. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/seashell-patterns-on-rocks-in-st-ives-cornwall-image7273642.html
RMAAYJJB–Seashell patterns on rocks in St Ives, Cornwall.
Ancylus fluviatilis, Print, Ancylus fluviatilis is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies., Reimagined by Gibon, design of warm cheerful glowing of brightness and light rays radiance. Classic art reinvented with a modern twist. Photography inspired by futurism, embracing dynamic energy of modern technology, movement, speed and revolutionize culture. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/ancylus-fluviatilis-print-ancylus-fluviatilis-is-a-species-of-very-small-freshwater-air-breathing-limpet-an-aquatic-pulmonate-gastropod-mollusk-in-the-tribe-ancylini-within-the-family-planorbidae-the-rams-horn-snails-and-their-allies-reimagined-by-gibon-design-of-warm-cheerful-glowing-of-brightness-and-light-rays-radiance-classic-art-reinvented-with-a-modern-twist-photography-inspired-by-futurism-embracing-dynamic-energy-of-modern-technology-movement-speed-and-revolutionize-culture-image349751891.html
RF2B90G2Y–Ancylus fluviatilis, Print, Ancylus fluviatilis is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies., Reimagined by Gibon, design of warm cheerful glowing of brightness and light rays radiance. Classic art reinvented with a modern twist. Photography inspired by futurism, embracing dynamic energy of modern technology, movement, speed and revolutionize culture.
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 425. Fig. 10. Eeproductive system of Hchctnnryhis exccntriciis. A, animal witli male genitalia extended; B, entire reprodnctive system, dissected from a mature specimen, as viewed from the left side, and with the organs separated. The albumen gland is a glassy white color, and the glandular oviduct when well developed is bright yellow. Other organs are whitish. Tlie 1 mm. scale refers to B only; C, male genitalia, as reconstructed fi-om whole mounts and serial sections: a, 1>, c, d Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-of-the-museum-of-comparative-zoology-at-harvard-college-zoology-basch-freshwater-limpet-snails-425-fig-10-eeproductive-system-of-hchctnnryhis-exccntriciis-a-animal-witli-male-genitalia-extended-b-entire-reprodnctive-system-dissected-from-a-mature-specimen-as-viewed-from-the-left-side-and-with-the-organs-separated-the-albumen-gland-is-a-glassy-white-color-and-the-glandular-oviduct-when-well-developed-is-bright-yellow-other-organs-are-whitish-tlie-1-mm-scale-refers-to-b-only-c-male-genitalia-as-reconstructed-fi-om-whole-mounts-and-serial-sections-a-1gt-c-d-image233900785.html
RMRGF2RD–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 425. Fig. 10. Eeproductive system of Hchctnnryhis exccntriciis. A, animal witli male genitalia extended; B, entire reprodnctive system, dissected from a mature specimen, as viewed from the left side, and with the organs separated. The albumen gland is a glassy white color, and the glandular oviduct when well developed is bright yellow. Other organs are whitish. Tlie 1 mm. scale refers to B only; C, male genitalia, as reconstructed fi-om whole mounts and serial sections: a, 1>, c, d
Lake limpet underwater on green stem Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/lake-limpet-underwater-on-green-stem-image154296834.html
River limpet (Ancylus fluviatilis) Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/river-limpet-ancylus-fluviatilis-image464752336.html
RF2J0389M–River limpet (Ancylus fluviatilis)
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCII : FRESHWATER LIMPET SNAILS 439 County. The form appears to be a local variant, perhaps de- veloped as a result of genetic drift in a circumscribed area. The second recognizable form is not so clearly defined as is var. hcndersoni. This is Fcrrissia fragilis var. sJiimckii, and differs from the typical fragilis in its concave lateral slopes. Such a "pinched-in" appearance has been found in several pop- ulations, particularly from the north-central area, but I am not certain whether the growth form indi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-of-the-museum-of-comparative-zoology-at-harvard-college-zoology-bascii-freshwater-limpet-snails-439-county-the-form-appears-to-be-a-local-variant-perhaps-de-veloped-as-a-result-of-genetic-drift-in-a-circumscribed-area-the-second-recognizable-form-is-not-so-clearly-defined-as-is-var-hcndersoni-this-is-fcrrissia-fragilis-var-sjiimckii-and-differs-from-the-typical-fragilis-in-its-concave-lateral-slopes-such-a-quotpinched-inquot-appearance-has-been-found-in-several-pop-ulations-particularly-from-the-north-central-area-but-i-am-not-certain-whether-the-growth-form-indi-image233900685.html
RMRGF2KW–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCII : FRESHWATER LIMPET SNAILS 439 County. The form appears to be a local variant, perhaps de- veloped as a result of genetic drift in a circumscribed area. The second recognizable form is not so clearly defined as is var. hcndersoni. This is Fcrrissia fragilis var. sJiimckii, and differs from the typical fragilis in its concave lateral slopes. Such a "pinched-in" appearance has been found in several pop- ulations, particularly from the north-central area, but I am not certain whether the growth form indi
Lake limpet underwater on green stem Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/lake-limpet-underwater-on-green-stem-image154296851.html
Lake limpet (Acroloxus lacustris) Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/lake-limpet-acroloxus-lacustris-image439451484.html
RF2GEXMRT–Lake limpet (Acroloxus lacustris)
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 415 2 a. Shell moderately elevated, apex usually conspicuous in older speci- mens. Posterior slope straight or slightly concave; anterior slope straight or slightly convex hirikleyi b. Shell very elevated, apex usually eroded in older specimens. Posterior slope straight or slightly convex, anterior slope clearly convex. . clatior KiiODACMEA iiiNKLEYi (AValker) Anci/Ius (Ferrissio,) MnUeyi Walker, 1908, Nautilus 21: 139, pi. ix, figs. 11-13, Ohio Eiver at Golcondn, Illinois. Ehodacmea r Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-of-the-museum-of-comparative-zoology-at-harvard-college-zoology-basch-freshwater-limpet-snails-415-2-a-shell-moderately-elevated-apex-usually-conspicuous-in-older-speci-mens-posterior-slope-straight-or-slightly-concave-anterior-slope-straight-or-slightly-convex-hirikleyi-b-shell-very-elevated-apex-usually-eroded-in-older-specimens-posterior-slope-straight-or-slightly-convex-anterior-slope-clearly-convex-clatior-kiiodacmea-iiinkleyi-avalker-anciius-ferrissio-mnueyi-walker-1908-nautilus-21-139-pi-ix-figs-11-13-ohio-eiver-at-golcondn-illinois-ehodacmea-r-image233862613.html
RMRGDA45–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 415 2 a. Shell moderately elevated, apex usually conspicuous in older speci- mens. Posterior slope straight or slightly concave; anterior slope straight or slightly convex hirikleyi b. Shell very elevated, apex usually eroded in older specimens. Posterior slope straight or slightly convex, anterior slope clearly convex. . clatior KiiODACMEA iiiNKLEYi (AValker) Anci/Ius (Ferrissio,) MnUeyi Walker, 1908, Nautilus 21: 139, pi. ix, figs. 11-13, Ohio Eiver at Golcondn, Illinois. Ehodacmea r
Lake limpet (Acroloxus lacustris) Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/lake-limpet-acroloxus-lacustris-image439451481.html
RF2GEXMRN–Lake limpet (Acroloxus lacustris)
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 421 Ancylus hemisphaericus Walker, 1908, Nautilus 21: 140, pi. ix, figs. 14, 15, 16, Georgia and Decatur, Alabama. Ferrissia hemisphaerica (Walker). Walker, 1918, Mist-el. Puhl. Mus. Zool. Univ. Mich. G: 120. FenisKia iliaphana (Haldeman). Walker, 1918, Miscel. Publ. Mus. Zool. Univ. Mich. 6: 120. Description: "Shell thin in texture, diaphanous, very wide, nearly circular, depressed; apex obtuse, almost central: slope scarcely convex. Color very pale olivaceous, translucent, aper- Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-of-the-museum-of-comparative-zoology-at-harvard-college-zoology-basch-freshwater-limpet-snails-421-ancylus-hemisphaericus-walker-1908-nautilus-21-140-pi-ix-figs-14-15-16-georgia-and-decatur-alabama-ferrissia-hemisphaerica-walker-walker-1918-mist-el-puhl-mus-zool-univ-mich-g-120-feniskia-iliaphana-haldeman-walker-1918-miscel-publ-mus-zool-univ-mich-6-120-description-quotshell-thin-in-texture-diaphanous-very-wide-nearly-circular-depressed-apex-obtuse-almost-central-slope-scarcely-convex-color-very-pale-olivaceous-translucent-aper-image233900848.html
RMRGF2WM–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 421 Ancylus hemisphaericus Walker, 1908, Nautilus 21: 140, pi. ix, figs. 14, 15, 16, Georgia and Decatur, Alabama. Ferrissia hemisphaerica (Walker). Walker, 1918, Mist-el. Puhl. Mus. Zool. Univ. Mich. G: 120. FenisKia iliaphana (Haldeman). Walker, 1918, Miscel. Publ. Mus. Zool. Univ. Mich. 6: 120. Description: "Shell thin in texture, diaphanous, very wide, nearly circular, depressed; apex obtuse, almost central: slope scarcely convex. Color very pale olivaceous, translucent, aper-
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCIl : FRESHWATER LIMPET SNAILS 419 Laevapex fuscus (C. B. Adams) Ancylufi fuscus Adams, 1841, Boston Jour. Nat. Hist. 3: 329, pi. Ill, fig. 17, Andover, Massachusetts. Ancylus ohscurus Haldeman, 1844, A moiiograpli of the Liimiaides and otlier fresh-water univalve shells of North America, no. 7, p. 9, pi. 1, fig. 5, Nolacluicky River, Greeneville, Tennessee. Ancylus eugraptus Pilsbry, 1896, Nautilus 9: 139, Illinois River at Havana, Illinois. Ancylus lycninsulac Pilsbrj- and Johnson, 1896, Nautilus 9: 138, St. John Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-of-the-museum-of-comparative-zoology-at-harvard-college-zoology-bascil-freshwater-limpet-snails-419-laevapex-fuscus-c-b-adams-ancylufi-fuscus-adams-1841-boston-jour-nat-hist-3-329-pi-ill-fig-17-andover-massachusetts-ancylus-ohscurus-haldeman-1844-a-moiiograpli-of-the-liimiaides-and-otlier-fresh-water-univalve-shells-of-north-america-no-7-p-9-pi-1-fig-5-nolacluicky-river-greeneville-tennessee-ancylus-eugraptus-pilsbry-1896-nautilus-9-139-illinois-river-at-havana-illinois-ancylus-lycninsulac-pilsbrj-and-johnson-1896-nautilus-9-138-st-john-image233900859.html
RMRGF2X3–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCIl : FRESHWATER LIMPET SNAILS 419 Laevapex fuscus (C. B. Adams) Ancylufi fuscus Adams, 1841, Boston Jour. Nat. Hist. 3: 329, pi. Ill, fig. 17, Andover, Massachusetts. Ancylus ohscurus Haldeman, 1844, A moiiograpli of the Liimiaides and otlier fresh-water univalve shells of North America, no. 7, p. 9, pi. 1, fig. 5, Nolacluicky River, Greeneville, Tennessee. Ancylus eugraptus Pilsbry, 1896, Nautilus 9: 139, Illinois River at Havana, Illinois. Ancylus lycninsulac Pilsbrj- and Johnson, 1896, Nautilus 9: 138, St. John
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 431 POPULATIONS OF Ferrissia rivularis O tr bJ m 2 D Z PENNSYLVANIA June N=7I. 7 mm. LENGTH OF SHELL Fig. 13. Populations of Ferrissia rivulm-is. Specimens of less than 3 mm. shell length are considered young of the year; those larger are adults. N = number of individuals in the population measured. Pennsylvania: Westmoreland County, 1 mi. NE New Florence, June 17, 1961; Virginia: Bedford County, Battery Creek 1 mi. N Big Island, June 24, 1961; Wyoming: Albany County, Little Laramie Ri Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-of-the-museum-of-comparative-zoology-at-harvard-college-zoology-basch-freshwater-limpet-snails-431-populations-of-ferrissia-rivularis-o-tr-bj-m-2-d-z-pennsylvania-june-n=7i-7-mm-length-of-shell-fig-13-populations-of-ferrissia-rivulm-is-specimens-of-less-than-3-mm-shell-length-are-considered-young-of-the-year-those-larger-are-adults-n-=-number-of-individuals-in-the-population-measured-pennsylvania-westmoreland-county-1-mi-ne-new-florence-june-17-1961-virginia-bedford-county-battery-creek-1-mi-n-big-island-june-24-1961-wyoming-albany-county-little-laramie-ri-image233900728.html
RMRGF2NC–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 431 POPULATIONS OF Ferrissia rivularis O tr bJ m 2 D Z PENNSYLVANIA June N=7I. 7 mm. LENGTH OF SHELL Fig. 13. Populations of Ferrissia rivulm-is. Specimens of less than 3 mm. shell length are considered young of the year; those larger are adults. N = number of individuals in the population measured. Pennsylvania: Westmoreland County, 1 mi. NE New Florence, June 17, 1961; Virginia: Bedford County, Battery Creek 1 mi. N Big Island, June 24, 1961; Wyoming: Albany County, Little Laramie Ri
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 417 Khodacmea elatior (Anthony) Aiicijlus elatior Anthony, 1855, Ann. I^yc. Nat. Hist., New York 6: 158, pi. V, figs. 20-21, Green Eiver, Kentucky. Rhodacmea elatior (Anthony). Walker, 1917, Nautilus 31: 8. Hhodacmca cahawhcnsis Walker, 1917, Nautilus 31: 7, pi. I, figs. 4-6, Cahawl)a [Cahaba] River, Gurnee, Shelby County, Alabama. Description: "Shell very much elevated, ovate; lines of growth distant, conspicuous; color light green, opaque; apex decuti- cated, recurved, sub-centr Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-of-the-museum-of-comparative-zoology-at-harvard-college-zoology-basch-freshwater-limpet-snails-417-khodacmea-elatior-anthony-aiicijlus-elatior-anthony-1855-ann-iyc-nat-hist-new-york-6-158-pi-v-figs-20-21-green-eiver-kentucky-rhodacmea-elatior-anthony-walker-1917-nautilus-31-8-hhodacmca-cahawhcnsis-walker-1917-nautilus-31-7-pi-i-figs-4-6-cahawla-cahaba-river-gurnee-shelby-county-alabama-description-quotshell-very-much-elevated-ovate-lines-of-growth-distant-conspicuous-color-light-green-opaque-apex-decuti-cated-recurved-sub-centr-image233900886.html
RMRGF2Y2–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 417 Khodacmea elatior (Anthony) Aiicijlus elatior Anthony, 1855, Ann. I^yc. Nat. Hist., New York 6: 158, pi. V, figs. 20-21, Green Eiver, Kentucky. Rhodacmea elatior (Anthony). Walker, 1917, Nautilus 31: 8. Hhodacmca cahawhcnsis Walker, 1917, Nautilus 31: 7, pi. I, figs. 4-6, Cahawl)a [Cahaba] River, Gurnee, Shelby County, Alabama. Description: "Shell very much elevated, ovate; lines of growth distant, conspicuous; color light green, opaque; apex decuti- cated, recurved, sub-centr
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 423 0 78 mm. 2 75 mm. 1.65 to 3.94 1 58 mm. 0.89 to 2.03 1 .51 .380 S. D., length Average widtli Range, width i.6o to 3.'J4 mm. Average heiglit Range, height 0.89 to 2.03 mm. Average L/W Average H/L Distribution: Living animals oeeur in large numbers in canals in Dade County, Florida. Specimens have been sent to me from canals near Tamiami Trail (U. S. Highway 41) at Palmetto Bypass and from i/o mile west of Coopertown. I have collected a few specimens from a roadside ditch on Sapelo I Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-of-the-museum-of-comparative-zoology-at-harvard-college-zoology-basch-freshwater-limpet-snails-423-0-78-mm-2-75-mm-165-to-394-1-58-mm-089-to-203-1-51-380-s-d-length-average-widtli-range-width-i6o-to-3j4-mm-average-heiglit-range-height-089-to-203-mm-average-lw-average-hl-distribution-living-animals-oeeur-in-large-numbers-in-canals-in-dade-county-florida-specimens-have-been-sent-to-me-from-canals-near-tamiami-trail-u-s-highway-41-at-palmetto-bypass-and-from-io-mile-west-of-coopertown-i-have-collected-a-few-specimens-from-a-roadside-ditch-on-sapelo-i-image233900811.html
RMRGF2TB–. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BASCH : FRESHWATER LIMPET SNAILS 423 0 78 mm. 2 75 mm. 1.65 to 3.94 1 58 mm. 0.89 to 2.03 1 .51 .380 S. D., length Average widtli Range, width i.6o to 3.'J4 mm. Average heiglit Range, height 0.89 to 2.03 mm. Average L/W Average H/L Distribution: Living animals oeeur in large numbers in canals in Dade County, Florida. Specimens have been sent to me from canals near Tamiami Trail (U. S. Highway 41) at Palmetto Bypass and from i/o mile west of Coopertown. I have collected a few specimens from a roadside ditch on Sapelo I
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