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Freshwater limpet Stock Photos and Images
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.
RMCNNH4N–Explore Kendal. River Kent, Information Board 3. Stramongate Weir, Kendal, Cumbria, England, United Kingdom, Europe.
RM2PGPPHB–Solar Fairy-wrasse (Cirrhilabrus solorensis) adult, swimming, Alor Island, Alor Archipelago, Lesser Sunda Islands, Indonesia
RMCNNH6X–Explore Kendal. River Kent, Information Board 2. Abbot Hall, Kendal, Cumbria, England, United Kingdom, Europe.
RMCNNH5C–Explore Kendal. River Kent, Information Board 1. Romney Bridge, Kendal, Cumbria, England, United Kingdom, Europe.
RMBC39GA–ram s horn apple snail pouch shell water snail common planorbis staircase apple shell river limpet
RMCNNH61–Explore Kendal. River Kent, Information Board 4. Dockray, Kendal, Cumbria, England, United Kingdom, Europe.
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
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.
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
RM2PGPPHE–Solar Fairy-wrasse (Cirrhilabrus solorensis) adult, swimming, Gereja Tua, Pura Island, Alor Archipelago, Lesser Sunda Islands, Indonesia
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
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.
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
RMW7XM4Y–Snails (Baicalia turriformis, Acroloxidae sp and Choanomphalus sp) Lake Baikal, Russia, May.
![. 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 Photo](https://c8.alamy.com/comp/RGF2KW/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-RGF2KW.jpg ". 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 Photo")
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
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
![. 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 Photo](https://c8.alamy.com/comp/RGF2WM/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-RGF2WM.jpg ". 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 Photo")
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-
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
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 Photo](https://c8.alamy.com/comp/RGF2Y2/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-RGF2Y2.jpg ". 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 Photo")
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
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
Search Results for Freshwater limpet Stock Photos and Images (46)
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