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306 results for “freshwater snails”
FIG. 1 in Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d'Histoire naturelle, Paris, with lectotype designations
FIG. 1. — Achatinellidae Gulick, 1873: A, Tornatellina cincta Ancey, 1904, syntype MNHN IM-2000-20012, 3.8 mm, fig. 5 of Ancey (1904a); B, Helicter compta Pease, 1869, lectotype MNHN IM-2000-30805, 24.7 mm; C, Helix decora Férussac, 1821, possible syntype MNHN IM-2000-30806,18.0 mm, fig. 3015 of Chemnitz (1795); D, Auriculella expansa Pease, 1868, lectotype MNHN IM-2000-30807, 6.4 mm, fig. 8 of Pease (1868); E, Helix lorata Férussac, 1825, lectotype MNHN IM-2000-30808, 14.2 mm, fig. 8 of Férussac in Quoy & Gaimard (1825); F, Helix lugubris Férussac, 1821, possible syntype MNHN IM-2000-30810, 17.2 mm, fig. 2062 of Chemnitz (1795). Scale bars: A, D, 1 mm; B, C, E, F, 10 mm. Dimensions given are shell height; reproductions of original illustrations not to scale.
Fig. 8 in The Freshwater Snail Genus Sulcospira Troschel, 1857 From Java, With Description Of A New Species From Tasikmalaya, West Java, Indonesia (Mollusca: Gastropoda: Pachychilidae)
Fig. 8. Distributions map of S. testudinaria and S. kawaluensis new species in Java: S. testudinaria is indicated by black spot, S. kawaluensis new species is indicated by star.
Fig. 4 in The Freshwater Snail Genus Sulcospira Troschel, 1857 From Java, With Description Of A New Species From Tasikmalaya, West Java, Indonesia (Mollusca: Gastropoda: Pachychilidae)
Fig. 4. Radular morphology: A–B, SEM images of a radular fragment of S. kawaluensis new species, showing central, lateral, marginal teeth: A, view from above; B, anterior viewed at 45° showing the shape of radular denticles. C–D, SEM images of radular fragment of S. testudinaria showing central, lateral, marginal teeth: C, view from above; D, anterior viewed at 45° showing the shape of radular denticles. Scale bar = 100 μm.
Fig. 7 in The Freshwater Snail Genus Sulcospira Troschel, 1857 From Java, With Description Of A New Species From Tasikmalaya, West Java, Indonesia (Mollusca: Gastropoda: Pachychilidae)
Fig. 7. Comparison of shells by parameters of length and shell width of S. kawaluensis new species (n = 36) and S.testudinaria (n = 18), both species from Cibangbay river.
Fig. 6 in The Freshwater Snail Genus Sulcospira Troschel, 1857 From Java, With Description Of A New Species From Tasikmalaya, West Java, Indonesia (Mollusca: Gastropoda: Pachychilidae)
Fig. 6. Embryonic shells from brood pouches: A, B, S. kawaluensis new species; C, D, S. testudinaria. Scale bar = 0.5 mm.
Fig. 3 in The Freshwater Snail Genus Sulcospira Troschel, 1857 From Java, With Description Of A New Species From Tasikmalaya, West Java, Indonesia (Mollusca: Gastropoda: Pachychilidae)
Fig. 3. External and internal morphology of S. kawaluensis new species: A, coiling animal; B, detail stomach. Abbreviations: cr, crescent folds; ct, crescent thickenings;dg, digestive gland; dgd, digestive gland duct; gp, gastric pad; lf, lateral fold; me, mantle edge; msc, columella muscle; sa, sorting area; sl, sole; ss, opening to style sac; stm, stomach. Scale bar = 1 mm.
Fig. 1 in The Freshwater Snail Genus Sulcospira Troschel, 1857 From Java, With Description Of A New Species From Tasikmalaya, West Java, Indonesia (Mollusca: Gastropoda: Pachychilidae)
Fig. 1. Shell morphology of Sulcospira sulcospira, S. pisum, and S. testudinaria: A, holotype S. sulcospira (ZMZ 522306); B, lectotype of Melania pisum MHNG, Brot collection (Java); C, paralectotype of M. pisum, MHNG, Brot collection (Java); D–F, S. testudinaria: (D, MZB Gst.15.062; E, MZB.Gst.15.479; F, MZB Gst.15.481). Abbreviations: ZMZ, Zoologiches Museum der Universität Zürich; MHNG, Muséum d'Histoire Naturelle, Genève. Scale bar = 10 mm.
Fig. 2 in The Freshwater Snail Genus Sulcospira Troschel, 1857 From Java, With Description Of A New Species From Tasikmalaya, West Java, Indonesia (Mollusca: Gastropoda: Pachychilidae)
Fig. 2. Shell and operculum of S. kawaluensis new species: A–C, holotype (MZB Gst.15.059); D, operculum of a paratype; E–G, paratypes (MZB Gst.8.545). Scale bar = 10 mm.
Text-fig. 3. Stratigraphic section through part of the Ashawq Formation at the Omanitherium type locality, Dhofar Governorate, Oman. Beds A–D are indurated cliff-forming strata identified in the accompanying field photographs (Textfigs 4, 5). Note the increase in marine influence as one ascends through the section, the fauna in Beds A and B being dominated by freshwater molluscs and land snails, with few brackish water specimens, whereas the biota in Bed D is frankly marine with a single specimen of the freshwater snail Pila. Bed C yielded Vermetus, oysters and sponges, but also contains abundant land snails and a low diversity of freshwater gastropods. in Large Mammals From The Rupelian Of Oman - Recent Finds
Text-fig. 3. Stratigraphic section through part of the Ashawq Formation at the Omanitherium type locality, Dhofar Governorate, Oman. Beds A–D are indurated cliff-forming strata identified in the accompanying field photographs (Textfigs 4, 5). Note the increase in marine influence as one ascends through the section, the fauna in Beds A and B being dominated by freshwater molluscs and land snails, with few brackish water specimens, whereas the biota in Bed D is frankly marine with a single specimen of the freshwater snail Pila. Bed C yielded Vermetus, oysters and sponges, but also contains abundant land snails and a low diversity of freshwater gastropods.
Fig. 3 in SNAIL - an interactive computer program for the determination of Central European freshwater gastropods
Fig. 3: The commputer programm SNAIL (version 1.0) with its eentrance menu (aa) as well as thee main menu (b).
Fig. 5 in SNAIL - an interactive computer program for the determination of Central European freshwater gastropods
Fig. 5: Key ooffered by the computer progrram SNAIL forr determining tthe species Lymmnaea stagnalis.
Fig. 4 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date
Fig. 4. Gyraulus chinensis from Amatikulu. Live specimens (4A–B, photos: H. Madsen) and specimen preserved in 70 % ethanol (4C, photo: N. Miranda). The shell of the specimen in 4B shows patches of erosion. Note the pigmented mantle in both live and preserved specimens.
Fig 3 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date
Fig 3. (A) Tree based on 533 nucleotides of the cytochrome c oxidase subunit I mtDNA of lymnaeid samples, with the outgroup Planorbis corneus. (B) Tree based on 360 nucleotides of the mt 16S rDNA of lymnaeid samples, with the outgroup Stagnicola elodes. Numbers on branches represent Bayesian posterior probabilities percentages, neighbour-joining and maximum parsimony bootstrap values, respectively. Only values greater than 50 % are shown; * indicates support of <50 % for distance analysis. Figures adapted from Nadasan (2011). RRA – lymnaeid samples from Amatikulu, South Africa; LND – lymnaeid samples from Durban, South Africa.
Figures 11-14. Bythinella golemoensis n in New taxa of freshwater snails from Macedonia (Gastropoda: Hydrobiidae, Amnicolidae)
Figures 11-14. Bythinella golemoensis n. sp. 11: shell of holotype; 12: shell of paratype from (2); 13: head and penis in situ; 14: penis with tubular gland (flagellum).
Figures 7-10. Sumia macedonica n. gen. n in New taxa of freshwater snails from Macedonia (Gastropoda: Hydrobiidae, Amnicolidae)
Figures 7-10. Sumia macedonica n. gen. n. sp.: 7: artificial lake at the locus typicus; 8: stones on the ground of the lake inhabited by Sumia macedonica, 9-10: living animals of Sumia macedonica n. sp.
Figures 15-18. Bythinella golemoensis n in New taxa of freshwater snails from Macedonia (Gastropoda: Hydrobiidae, Amnicolidae)
Figures 15-18. Bythinella golemoensis n. sp. 15: shell of holotype; 16: shell of paratype from (2); 17: head and penis in situ; 18: penis with tubular gland (flagellum).
Figure 1 in New taxa of freshwater snails from Macedonia (Gastropoda: Hydrobiidae, Amnicolidae)
Figure 1. Sampling sites of the new hydrobiid species. 1: Spring Šum, 4 km N of Struga; 2: spring SW and E of Golemo Lake (Pelister National Park).
FIGURE 11 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 11 Shells of Semisulcospira salebrosa sp. nov. A–G, Holotype, KUZ Z4131. H–J, Paratype, KUZ Z4133. K–L, Paratype, KUZ Z4135. M–O, Specimen from Take-shima Island, KUZ Z4138. A–C, H, K, M, Adult shell. A–C, H, M, Female. K, Male. D, I, L, N, Operculum. E–G, J, O, Embryonic shell. Scale bars: 10 mm (A–D, H–I, K–L, M–N), 1 mm (E–G, J, O). All specimens were treated with 3% sodium hypochlorite
FIGURE 9 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 9 Shells of Semisulcospira watanabei sp. nov. A–G, Holotype, KUZ Z4109. H–J, Paratype, KUZ Z4110. K–L, Paratype, KUZ Z4114. M–N. Specimen from Oura, KUZ Z4117. O–Q, Specimen from Nihonmatsu, KUZ Z4118. R–T, Specimen from Horikiri Port, KUZ Z4120. A–C, H, K, M, O, R, Adult shell. A–C, H, O, R, Female. K, Male. M, Juvenile. D, I, L, N, P, S, Operculum. E–G, J, Q, T, Embryonic shell. Scale bars: 10 mm (A–D, H–I, K–L, M–N, O–P, R–S), 1 mm (E–G, J, Q, T). All specimens were treated with 3% sodium hypochlorite
FIGURE 7 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 7 Results of Random Forest analyses conducted for five Semisulcospira species. Euclidean distances generated from proximities among individuals are plotted. A, Female. B, Male
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.