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8,443 results for “gastropoda”
FIGURES 17. 13. Turbonilla virgulinoi n in Five new species of Turbonilla Risso, 1826 (Gastropoda, Heterobranchia, Pyramidellidae) found off the northeast coast of Brazil º 13 º
FIGURES 17. 13. Turbonilla virgulinoi n. sp., holotype (MNRJ 9823). 1: whole shell, length 1.8 mm; 2: base detail; 3: protoconch detail. Scale bar = 100 µm. 47. Turbonilla megascymna n. sp., holotype (IBUFRJ 12703). 4: whole shell, length 2.3 mm; 5: protoconch detail; 6: base detail; 7: spiral microsculpture. Scale bar = 100 µm.
FIGURES 814. 810. Turbonilla kamayura n in Five new species of Turbonilla Risso, 1826 (Gastropoda, Heterobranchia, Pyramidellidae) found off the northeast coast of Brazil º 13 º
FIGURES 814. 810. Turbonilla kamayura n. sp., holotype (IBUFRJ 12701). 8: whole shell, length 4.0 mm; 9: base detail; 10: protoconch detail. Scale bar = 100 µm. 1114. Turbonilla mermeroglaphyra n. sp., holotype (MNRJ 9825). 11: whole shell, length 2.4 mm; 13: base detail; 14: protoconch detail; 12: paratype (IBUFRJ 12704), whole shell, length 2.8 mm. Scale bar = 100 µm.
FIGURES 1–7 in A new genus and species of Typhinae (Mollusca, Gastropoda, Muricidae) from off northeastern Brazil
FIGURES 1–7: 1,6—Holotype (mature specimen) MORG 41063; 1—ventral view, 2—dorsal view, 3 Microsculpture detail, the arrow is showing the incipient columellar callus, 4—Enlarged aperture with details of tooth and columellar callus (arrow), 5—Protoconch detail, 6—Detail of protoconch/teleoconch transiction, 7—Paratype (young specimen), ventral view IBUFRJ 13817. Scale bars: fig. 6 = 200µm, all others = 500 µm.
FIGURES 15. Caelatura tigrina n in Three new species of Barleeidae (Mollusca, Gastropoda, Rissooidea) from Brazil
FIGURES 15. Caelatura tigrina n. sp. 1 holotype (MNRJ 8619), length 2.50 mm; 2: paratype (IBUFRJ 12037), length 2.43 mm; 3: detail of sculpture of paratype; 4: operculae; 5: protoconch of paratype. Figs. 68: Caelatura speculabunda n. sp. (holotype MNRJ 8621). 6: length 2.46 mm; 7: protoconch; 8: detail of sculpture. Fig. 9: Caelatura spirocordata (IBUFRJ). length 2.02 mm. All scale bars: 1.0 mm, except 4: 200 m.
FIGURES 912. Protobarleeia pyrrocincta n in Three new species of Barleeidae (Mollusca, Gastropoda, Rissooidea) from Brazil
FIGURES 912. Protobarleeia pyrrocincta n. sp. 9: holotype (MNRJ 8622), length 1.64 mm; 10: paratype (IBUFRJ 12038), length 1.50 mm; 11: protoconch of holotype; 12: last whorl of holotype. Figs. 1314: Barleeia rubroperculata (IBUFRJ). 13: length 3.01 mm; 14: protoconch. Scale bars: 11: 100 ìm; 12, 14: 200 m.
FIGURES 1317 in On the taxonomy of Turbonilla puncta (C. B. Adams, 1850) (Gastropoda, Pyramidellidae), with the description of a new species from Brazil and remarks on other western atlantic species
FIGURES 1317: Turbonilla deboeri Jong & Coomans, 1988: 13 holotype (ZMA 3.87.106), length: 5.6 mm; 14 whole shell (IBUFRJ 2540), length: 6.8 mm; 15 detail of sculpture (IBUFRJ 2540); 16 base (IBUFRJ 2540); 17 protoconch (IBUFRJ 2540). Scale bars: 15, 17: 500 m; 16: 100 m.
FIGURE 38 in On the taxonomy of Turbonilla puncta (C. B. Adams, 1850) (Gastropoda, Pyramidellidae), with the description of a new species from Brazil and remarks on other western atlantic species
FIGURE 38: Geographic distribution of the studied species (except T. punicea) in the Western Atlantic Ocean according to the material examined for this study and literature data. Numbers marked with an asterisks (*) indicate type locality of each species. 1 T. puncta; 2 T. obsoleta; 3 T. deboeri; 4 T. westermanni; 5 T. tupinamba.
FIGURES 3337 in On the taxonomy of Turbonilla puncta (C. B. Adams, 1850) (Gastropoda, Pyramidellidae), with the description of a new species from Brazil and remarks on other western atlantic species
FIGURES 3337: Turbonilla tupinamba n.sp.: 33 holotype (MNRJ 8944), length: 4.9 mm; 34 base of holotype; 35 three last whorls of holotype; 36 protoconch of paratype (ANSP 410354); 37 protoconch of paratype (MZSP 35855). Scale bars: 300 m.
FIGURES 2732 in On the taxonomy of Turbonilla puncta (C. B. Adams, 1850) (Gastropoda, Pyramidellidae), with the description of a new species from Brazil and remarks on other western atlantic species
FIGURES 2732: 2730: Turbonilla westermanni Jong & Coomans, 1988: 27 holotype (ZMA 3.87.107), length: 4.2 mm; 28 paratype (ZMA 3.87.174), length: 5.7 mm; 29 whole shell (IBUFRJ 8949), length: 5.1 mm; 30 base (IBUFRJ 8949). Scale bar: 500 m. 3132: Turbonilla punicea Dall, 1884: 31 holotype (USNM 35954), length: 7.6 mm; 32: base of holotype. Scale bar: 500 m.
FIGURES 35 in Redescription, shell variability and geographic distribution of Plagiodontes dentatus (Wood, 1828) (Gastropoda: Orthalicidae: Odontostominae) from Uruguay and Argentina
FIGURES 35. Representative shells of the three species of Plagiodontes under comparison. 3, Plagiodontes dentatus (Wood, 1828); 4, P. multiplicatus (Doering, 1874); 5, P. patagonicus (d'Orbigny, 1835).
FIGURES 13 in Polygyrid land snails, Vespericola (Gastropoda: Pulmonata), 4. A new and possibly extinct species from central California, U. S. A.
FIGURES 13. Vespericola ohlone Roth, sp. nov. Holotype, SBMNH 348128, Patterson's Willows, Alameda County, California. Top, apertural, and basal views of shell. Diameter (exclusive of outer lip) 14.5 mm; scale bar = 5 mm.
FIGURES 813 in Redescription, shell variability and geographic distribution of Plagiodontes dentatus (Wood, 1828) (Gastropoda: Orthalicidae: Odontostominae) from Uruguay and Argentina
FIGURES 813. SEM photographs of the protoconch sculpture in Plagiodontes spp. 8, P. dentatus; 9, newly hatched P. patagonicus; 10, P. multiplicatus; 11, closeup of Fig. 9, showing the maximum development of the spiral lines crossing the axial striae; 12, eroded apex of P. multiplicatus; 13, closeup of figure 12, showing the remains of spiral sculpture in the protoconch. Bar "a" scales Figures 8, 9, 10, and 12; bar "b" scales Figures 11 and 13.
FIGURE 4 in Kootenaia burkei, a new genus and species of slug from northern Idaho, United States (Gastropoda: Pulmonata: Arionidae)
FIGURE 4: A. Maximum parsimony tree for representatives of the genera Hemphillia, Kootenaia, Prophysaon, and Zacoleus based on 15 anatomical characters. Bootstrap values (10,000 replicates) are given at the nodes. The scale bar indicated the number of changes. B. Bayesian phylogram for the same species based on combined fragments of mitochondrial COI DNA and LSU rRNA showing the 50% majorityrule consensus of topologies sampled during the Bayesian search. The scale bar indicates the substitution rate according to the model of sequence evolution applied. The numbers at the branches are the percentages that the clade occurs among all sampled trees; i.e. the posterior probability of that clade.
FIGURE 2 in Kootenaia burkei, a new genus and species of slug from northern Idaho, United States (Gastropoda: Pulmonata: Arionidae)
FIGURE 2. Dissected holotype of Kootenaia burkei from Shoshone County, Idaho, showing the reproductive and digestive systems. Dorsal view of reproductive system on the left and ventral view of digestive system on the right. Total body length in alcohol = 10 mm.
FIGURE 4 in Revision of the systematic status of Helminthoglypta walkeriana morroensis (Hemphill, 1911) (Gastropoda: Pulmonata)
FIGURE 4. Distribution of discriminant scores on the derived canonical variate (using all variables) calculated to maximally separate H. morroensis and H. walkeriana.
FIGURE 3 in Revision of the systematic status of Helminthoglypta walkeriana morroensis (Hemphill, 1911) (Gastropoda: Pulmonata)
FIGURE 3. ShHt versus ShWd (shape) regressions among collection localities within and between H. walkeriana and H. morroensis. Regressions for H. morroensis homogeneous among all four localities. Adjusted ShHt for MBSS and LO1 sites (15.1 mm) significantly greater than adjusted ShHt for Elfin, MSSB, and LO2 sites (14.5 mm). See text for discussion of common regressions.
FIGURE 2. Discriminant scores with 99 in Revision of the systematic status of Helminthoglypta walkeriana morroensis (Hemphill, 1911) (Gastropoda: Pulmonata)
FIGURE 2. Discriminant scores with 99% confidence ellipses around group centroids on the first and second canonical variates calculated to maximally separate the nine collection locations listed in Table 1. H. walkeriana groups are: MBSS (♢), MSSB (), Elfin (), LO1 (), and LO2 (). H. morroensis groups are: Bishop (×), CSLO (), SBCR (), and NPNA (). See Table 1 for site descriptions and abbreviations.
FIGURE 1 in Range extension of Pseudotorinia phorcysi (Gastropoda: Architectonicidae) from the SW Atlantic, with remarks on its ontogeny
FIGURE 1. Pseudotorinia phorcysi from the SW Atlantic; A–B. Holotype MNHN 26363; A. apertural view (SD = 2.69 mm, H = 1.0 mm); B. apical view (P = 0.59). C–G. Specimen from Rio Grande do Sul MZSP 19431; C. umbilical view (SD = 5.46 mm); D. detail of protoconch, arrow indicates location of terminal varix (scale = 2 mm) E. apical view; F. apertural view (H = 2.24 mm); G. umbilical view, detail of protoconch, arrow indicates location of terminal varix (scale = 2 mm).
FIGURE 1 in Morphology and systematic position of Cingula tumidula G. O. Sars, 1878 (Gastropoda: Rissoidae)
FIGURE 1. Shells of Pusillina tumidula. A. Barents Sea, Dalne-Zelenetskaya Bay, 59 m, 69°07.92'N, 36°05.45'E, MMBI, no number; B. Barents Sea, Malaya Sharkovka Bay, 27 m, 69°12.57'N, 34°54.31'E, MMBI, no number; C. Eastern Barents Sea (Pechora Sea), 17.5 m, 69°15.61'N, 57°22.76'E, MMBI, no number; D, E. Holotype of Cingula tumidula, ZMO D659; E. after Sars (1878); F. specimen from the type sample of Punctulum minutuim labeled as "paratype", ZIN 35667/2; G. Lectotype of Rissoa griegi, ZMB 20857; H. Holotype of Punctulum minutum, ZIN 35666/1. Scale = 1 mm.
FIGURE 1 in Diaphorodoris alba Portmann & Sandmeier, 1960 is a valid species: molecular and morphological comparison with D. luteocincta (M. Sars, 1870) (Gastropoda: Nudibranchia)
FIGURE 1. (A) Diaphorodoris luteocincta (M. Sars, 1870); Gulen Dive Centre, (60.957793°N, 5.128662°E) Norway, 12 m depth, March 2015, length: 10 mm. (B) D. alba Portmann & Sandmeier, 1960; Formiche di Grosseto, (42°35'49.8"N 10°52'58.0"E) Tuscany, Italy, 30 m depth, April 2012, length: 12 mm. Lateral view of D. luteocincta (C) and D. alba (D).
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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
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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
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