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8,443 results for “gastropoda”
FIGURE 4. P in New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna
FIGURE 4. P. fresti sp. nov., USNM 1102161. A. Portion of radula ribbon. Scale bar = 20 µm. B. Central radular teeth. Scale bar = 10 µm. C. Lateral and inner marginal teeth. Scale bar = 10 µm. D. Inner marginal tooth. Scale bar = 10 µm. E. Outer marginal teeth. Scale bar = 10 µm..F. Outer marginal tooth, showing outer wing. Scale bar = 10 µm. Wg = wing.
FIGURE 7. P in New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna
FIGURE 7. P. owyheensis sp. nov. A–F. Opercula. Scale bar = 500 µm. A–B. Outer side, showing frilled whorls, USNM 1116915, USNM 1092854. C–F. Inner side, showing variation in thickening of attachment scar margin, USNM 1116915, USNM 1102152, USNM 1092854, USNM 1092854. Rm = rim.
FIGURE 1 in New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna
FIGURE 1. Map showing the distributions of Pyrgulopsis species in southeastern Oregon. Arrows indicate previously documented localities; all others are newly reported herein. Some of the symbols refer to multiple, closely proximal localities.
FIGURE 9. P in New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna
FIGURE 9. P. owyheensis sp. nov.. A–B. Penis, USNM 1092819. Scale bar = 0.25 mm. A. Dorsal surface. B. Ventral surface. C–D. Penis, USNM 1102152. Scale bar = 0.5 mm. C. Dorsal surface. D. Ventral surface. E. Female glandular oviduct and associated structures (viewed from the left side), USNM 1092819. Scale bar = 0.25 mm. F. Bursa copulatrix and its duct. Scale as in "E." G. Seminal receptacle and its duct. Scale as in "E." Ag = albumen gland, Bu = bursa copulatrix, Cd = common duct of seminal receptacle and coiled oviduct, Cg = capsule gland, Co = coiled oviduct, Dbu = bursal duct, Ga =genital aperture, Pd = penial duct, Pf = penial filament, Pg = penial gland, Pl = penial lobe, Pw = posterior wall of pallial cavity, Sr = seminal receptacle, Tg = terminal gland, Vc = ventral channel, Vg = ventral gland.
FIGURE 3. P. f in New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna
FIGURE 3. P. f re s t i sp. nov. A–C. Shells. Scale bar = 1.0 mm. A. Holotype, USNM 1102148. B. Paratype, USNM 1116914. C. USNM 1092860. D. Shell apex, USNM 1116914. Scale bar = 100 µm. E. Close-up of protoconch sculpture, USNM 1116914. Scale bar = 100 µm. F–H. Opercula. Scale bar = 500 µm. F. Outer side, showing frilled whorl, USNM 1102161. G–H. Inner side, showing variation in thickening of attachment scar margin, USNM 1116914, USNM 1102161. Rm = rim.
FIGURE 8. P in New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna
FIGURE 8. P. owyheensis sp. nov. A. Portion of radula ribbon, USNM 1116915. Scale bar = 20 µm. B. Central radular teeth, USNM 1116915. Scale bar = 10 µm. C. Lateral and inner marginal teeth, USNM 1116915. Scale bar = 10 µm. D. Inner marginal tooth, USNM 1116915. Scale bar = 10 µm. E. Outer marginal teeth, USNM 1116915. Scale bar = 10 µm. F. Outer marginal tooth, showing outer wing, USNM 1092854. Scale bar = 10 µm. Wg = wing.
FIGURE 11. P in New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna
FIGURE 11. P. intermedia (Tryon). A–B. Penis, USNM 1075362. Scale bar = 0.5 mm. A. Dorsal surface. B. Ventral surface. Pd = penial duct, Pf = penial filament, Pg = penial gland, Pl = penial lobe, Tg = terminal gland, Vg = ventral gland.
FIGURE 6. P in New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna
FIGURE 6. P. owyheensis sp. nov. A–I. Shells. Scale bar = 1.0 mm. A. Holotype, USNM 883435. B, USNM 1071259. C. USNM 1092854. D. USNM 1115390. E. USNM 1115400. F. USNM 1115388. G. USNM 1107074. H. USNM 1107073. I. USNM 1102152. J. Shell apex, USNM 1102152. Scale bar = 100 µm. K. Close-up of protoconch sculpture, USNM 1102152. Scale bar = 100 µm.
FIGURE 5. P. f in New species and records of Pyrgulopsis (Gastropoda: Hydrobiidae) from the Snake River basin, southeastern Oregon: further delineation of a highly imperiled fauna
FIGURE 5. P. f resti sp. nov., USNM 1102161. A–B. Penis. Scale bar = 0.5 mm. A. Dorsal surface. B. Ventral surface. C. Female glandular oviduct and associated structures (viewed from the left side). Scale bar = 0.5 mm. D. Bursa copulatrix and its duct. Scale as in "C." Ag = albumen gland, Bu = bursa copulatrix, Cg = capsule gland, Co = coiled oviduct, Dbu = bursal duct, Ga =genital aperture, Pd = penial duct, Pf = penial filament, Pl = penial lobe, Pw = posterior wall of pallial cavity, Vc = ventral channel, Vg = ventral gland.
FIGURE 1. A. Anatoma rolani new species. Holotype. 35 m in Anatoma rolani n. sp. and new records of rare Caribbean Anatoma species (Gastropoda: Vetigastropoda: Anatomidae)
FIGURE 1. A. Anatoma rolani new species. Holotype. 35 m, Kittery beach, Guantanamo Bay, Oriente Province, Cuba, 19.883˚N, 75.117˚W (LACM 3120). Scale bar shell = 1 mm. Scale bar protoconch = 100 µm. B. Anatoma plicatazona Geiger & McLean, 2010. 40 m, Rancho Luna, Cienfuegos, Cuba, 22.017˚N, 80.430˚W (MHNS, images by E. Rolán). Scale bar = 1 mm.
FIGURES 2–3. 2 in Zilchogyra franzi Weyrauch, 1965 (Gastropoda: Charopidae), a minute landsnail rediscovered in Sierra de la Ventana (Southern Pampas, Argentina)
FIGURES 2–3. 2, Sites inhabited by Zilchogyra franzi; 3, General view of ravine 1. Arrow indicates cave with Z. franzi.
FIGURE 7, 8 in Zilchogyra franzi Weyrauch, 1965 (Gastropoda: Charopidae), a minute landsnail rediscovered in Sierra de la Ventana (Southern Pampas, Argentina)
FIGURE 7, 8. Scanning electron micrographs of Zilchogyra franzi. 7, protoconch; 8, the axial ribs and the intercostal microsculpture.
FIGURES 4–6 in Zilchogyra franzi Weyrauch, 1965 (Gastropoda: Charopidae), a minute landsnail rediscovered in Sierra de la Ventana (Southern Pampas, Argentina)
FIGURES 4–6. Scanning electron micrographs of Zilchogyra franzi showing shell measurements. 4, dorsal view, black line: major diameter; 5, ventral view, black line: umbilicus width; 6, frontal view. ab, spire protrusion; bc, body whorl width; ad, shell height.
FIGURE 4 in Two new Stephanostomum - like cercariae (Digenea: Acanthocolpidae) from Nassarius dorsatus and N. olivaceus (Gastropoda: Nassariidae) in Central Queensland, Australia
FIGURE 4. Inferred secondary structure of the ITS2 rDNA region for based on minimum free-energy modelling for a. Cercaria capricornia VII and b. C. capricornia VIII. Helices one through four are indicated with Roman numerals. Complete compensatory base changes (CBCs) and hemi-CBCs are indicated in grey.
FIGURE 3. Relationships between Cercaria capricornia VII and C in Two new Stephanostomum - like cercariae (Digenea: Acanthocolpidae) from Nassarius dorsatus and N. olivaceus (Gastropoda: Nassariidae) in Central Queensland, Australia
FIGURE 3. Relationships between Cercaria capricornia VII and C. capricornia VIII and the remainder of the taxa examined based on Bayesian inference analysis of partial LSU rDNA. Posterior probabilities are shown at the nodes with values <50 not shown.
FIGURE 2. a–c. Cercaria capricornia VIII, naturally emerged from Nassarius dorsatus. a in Two new Stephanostomum - like cercariae (Digenea: Acanthocolpidae) from Nassarius dorsatus and N. olivaceus (Gastropoda: Nassariidae) in Central Queensland, Australia
FIGURE 2. a–c. Cercaria capricornia VIII, naturally emerged from Nassarius dorsatus. a. Body, heat-killed, in ventral view; b. Entire cercaria, heat-killed, from side view; c. Redia, fixed. Scale bars a, b, c = 50 µm.
FIGURE 1. a–d in Two new Stephanostomum - like cercariae (Digenea: Acanthocolpidae) from Nassarius dorsatus and N. olivaceus (Gastropoda: Nassariidae) in Central Queensland, Australia
FIGURE 1. a–d. Cercaria capricornia VII, naturally emerged from Nassarius dorsatus and N. olivaceus. a. Body, heatkilled, in ventral view; b. Entire cercaria, heat-killed, from side view; c. Live cercaria, body folded for swimming, from ventral view; d. Redia, fixed. Scale bars a, b, d = 50 µm; c not to scale.
FIGURE 4. P in Two new, possibly threatened species of Pyrgulopsis (Gastropoda: Hydrobiidae) from southwestern California
FIGURE 4. P. castaicensis sp. nov., USNM 1097788. A. Portion of radula ribbon. Scale = 10 µm. B. Central radular teeth. Scale = 2 µm. C. Lateral and inner marginal teeth. Scale = 10 µm. D–E. Inner marginal teeth. Scales = 10 µm. F. Outer marginal teeth. Scale = 10 µm. Wg = wing.
FIGURE 3. P in Two new, possibly threatened species of Pyrgulopsis (Gastropoda: Hydrobiidae) from southwestern California
FIGURE 3. P. castaicensis sp. nov. A–C. Shells. Scale = 1.0 mm. A. Holotype, USNM 1120442. B–C. Paratypes, USNM 1132532. D. Shell apex, USNM 1132532. Scale = 100 µm. E. Close-up of protoconch sculpture, USNM 1132532. Scale = 100 µm. F–H. Opercula, USNM 1132532. Scale = 250 µm. F. Outer side, showing frilled whorl. G–H. Inner side, showing variation in thickening of attachment scar margin.
FIGURE 7. P in Two new, possibly threatened species of Pyrgulopsis (Gastropoda: Hydrobiidae) from southwestern California
FIGURE 7. P. milleri sp. nov., USNM 90527, scales = 10 µm. A. Portion of radula ribbon. B. Central radular teeth. C. Lateral tooth. D. Inner marginal teeth. E–F. Outer marginal teeth. Wg = wing.
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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)
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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.