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8,443 results for “gastropoda”
FIGURES 25–40. Arxellia boucheti n in New genus Arxellia with new species of Solariellidae (Gastropoda: Trochoidea) from New Caledonia, Papua New Guinea, Philippines, Western Australia, Vanuatu and Tonga
FIGURES 25–40. Arxellia boucheti n. sp., New Caledonia, Norfolk Ridge. 25–26, holotype MNHN IM-2009-17850, 555–565 m [NORFOLK 2, stn DW2057], 11.5 x 12.7 mm. 27–30, paratype MNHN IM-2009-17849, 555–565 m [NORFOLK 2, stn DW2057]. 27–28, shell, 10.4 x 11.3 mm. 29, details of protoconch and early whorls. 30, details of columella, umbilicus and aperture. 31–33, paratype MNHN IM-2009-17851, 555–565 m [NORFOLK 2, stn DW2057], 11.8 x 13.0 mm. 34–35, paratype NHMUK 20140007, 555–565 m [NORFOLK 2, stn DW2057], 10.8 x 12.3 mm. 36–37, MNHN, 573 m [CHALCAL 2, stn DW73], 12.1 x 13.2 mm. 38–39, MNHN, juvenile specimen, 569–616 m [NORFOLK 1, stn DW1697], 4.2 x 5.2 mm. 40, operculum, MNHN, 575–589 m [NORFOLK 1, stn DW1694]. Scale bar = 5 mm, except fig. 29: 100 µm, fig. 30: 200 µm, fig. 40: 2 mm.
FIGURE 41. Arxellia boucheti n in New genus Arxellia with new species of Solariellidae (Gastropoda: Trochoidea) from New Caledonia, Papua New Guinea, Philippines, Western Australia, Vanuatu and Tonga
FIGURE 41. Arxellia boucheti n. sp., external anatomy: ct: cephalic tentacle; e: eye; et: epipodial tentacle; l: lips; lnl: left neck lobe; o: operculum; p: propodium; rnl: right neck lobe; sot: subocular tentaculiform process.
FIGURE 11 in New genus Arxellia with new species of Solariellidae (Gastropoda: Trochoidea) from New Caledonia, Papua New Guinea, Philippines, Western Australia, Vanuatu and Tonga
FIGURE 11. Principal conchological features of Arxellia shells utilised in species descriptions: H: height; W: width; HA: height of the aperture (shell: Arxellia trochos n. sp., holotype MNHN IM-2009-23092, New Caledonia, Banc de l'Orne/ Walope, EXBODI, stn DW3862, 5.9 x 5.3 mm).
FIGURES 1–9. Arxellia new species, all holotypes except A. tenorioi. 1, A. trochos, n in New genus Arxellia with new species of Solariellidae (Gastropoda: Trochoidea) from New Caledonia, Papua New Guinea, Philippines, Western Australia, Vanuatu and Tonga
FIGURES 1–9. Arxellia new species, all holotypes except A. tenorioi. 1, A. trochos, n. sp., type species of Arxellia n. gen. 2, A. boucheti n. sp. 3, A. herosae n. sp. 4, A. helicoides n. sp. 5, A. tenorioi n. sp. 6, A. tracheia n. sp. 7, A. maestratii n. sp. 8, A. thaumasta n. sp. 9, A. erythrea n. sp. Scale bar = 5 mm.
FIGURES 12–24. Arxellia trochos n in New genus Arxellia with new species of Solariellidae (Gastropoda: Trochoidea) from New Caledonia, Papua New Guinea, Philippines, Western Australia, Vanuatu and Tonga
FIGURES 12–24. Arxellia trochos n. sp., New Caledonia. 12–14, holotype MNHN IM-2009-23092, Banc de l'Orne/Walope, 400–520 m [EXBODI, stn DW3862], 5.9 x 5.3 mm. 15–18, paratype MNHN IM-2009-23109, Banc Sur Durand, 471–510 m [EXBODI, stn CP3851]. 15–16, shell, 6.8 x 6.7 mm. 17, details of protoconch and early whorls; 18, details of columella, umbilicus and aperture. 19, paratype MNHN IM-2009-23094, Banc de l'Orne/Walope, 425–490 m [EXBODI, stn DW3861], 6.6 x 6.0 mm. 20–22, MNHN, 435 m [BIOCAL, stn DW08], 6.3 x 5.8 mm. 23–24, paratype MNHN IM-2009-23089, radula. 23, entire width of radula ribbon. 24, central field. Scale bar = 5 mm, except figs. 17, 23: 100 µm, fig. 18: 200 µm, fig. 24: 20 µm.
FIGURE 25 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 25. Taringa iemanja sp. nov., SEM photographs (MNRJ 13180); A, detail of the labial cuticle; B, first lateral tooth, the first tiny denticle indicated by white arrow; C, midlateral teeth; D, marginal teeth; E, caryophyllidia; F, penial cuticle.
FIGURE 17 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 17. Jorunna spazzola, SEM photographs; A, detail of the labial cuticle; B–D, detail of the innermost lateral tooth; E– F, marginal teeth; G–H, caryophyllidia. A, C–F (MNRJ 13190); B (MNRJ 13196); G–H (Syntype, MZSP 75960).
FIGURE 21 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 21. Platydoris angustipes, SEM photographs; A, detail of the labial cuticle; B, first lateral teeth; C, marginal teeth; D, caryophyllidia; E, distal portion of the vagina; F, penis. A–F (MNRJ 13189).
FIGURE 14 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 14. Diaulula greeleyi (MNRJ 15034); A, general view of reproductive system; B, uterine duct and adjacent structures. Abbreviations: am, ampulla; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina.
FIGURE 13 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 13. Diaulula greeleyi, SEM photographs; A, detail of the labial cuticle; B, innermost lateral teeth; C, midlateral teeth; D, marginal teeth; E, general view of the dorsum; F, detail of the caryophyllidium. A (MNRJ 13193); B–D (MNRJ 13994); E– F (MNRJ 12307).
FIGURE 10 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 10. Discodoris branneri; A, general view of reproductive system (MNRJ 14934); B, purple egg mass deposited inside the aquarium (MNRJ 15001); C, usual egg mass white (MNRJ 14922). Abbreviations: am, ampulla; bc, bursa copulatrix; dd, deferent duct; f, female glands; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina.
FIGURE 18 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 18. Jorunna spazzola (Syntype, MZSP 75960); A, general view of reproductive system; B, copulatory spine. Abbreviations: ag, accessory gland; am, ampulla; bc, bursa copulatrix; dd, deferent duct; f, female glands; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina.
FIGURE 8 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 8. Geitodoris pusae (MNRJ 14973); A, general view of reproductive system; B, egg mass; C, SEM photograph showing egg capsules. Abbreviations: am, ampulla; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina; vg, vestibular gland.
FIGURE 16. A in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 16. A, general view of reproductive system of Rostanga byga (MNRJ 13299); B, two specimens (not collected) with egg mass from Ilha do Papagaio, RJ, Brazil, the egg mass is indicated by white arrow; photo: Luiz Fernando Cassino. Abbreviations: am, ampulla; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; pr, prostate; s, seminal receptacle; va, vagina.
FIGURE 7 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 7. Geitodoris pusae, SEM photographs; A, labial cuticle; B, inner surface of the innermost lateral tooth; C, outermost lateral teeth; D, detail of the marginal teeth, serrated portion of the teeth indicated by white arrow; E–F, tubercle; F, organic portion of the mantle removed. A–B (MNRJ 12793); C–F (MNRJ 14973).
FIGURE 4. Thordisa diuda, A–B in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 4. Thordisa diuda, A–B, general view of reproductive system; A (MZSP 75298); B, Juvenile (3 mm in length) (MNRJ 13195). Abbreviations: am, ampulla; ag, accessory gland; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina.
FIGURE 3 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 3. Thordisa diuda, SEM photographs of the radula and dorsum; A, half rows of radula; B–C, innermost teeth; B, inner side; C, outer side, denticle indicated by white arrow; D, midlateral teeth; E, marginal teeth; F, tubercle of the dorsum. A– E (MNRJ 13195); F (MZSP 75298).
FIGURE 5 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 5. Hoplodoris hansrosaorum, SEM photographs; A, labial cuticle; B, inner surface of the innermost lateral tooth; C, midlateral tooth; D, marginal teeth; E, tubercle of the dorsum; F–G, penis, spines indicated by white arrow; G, detail of the spines; H, stylet of the accessory gland. A–C,E,H (MNRJ 13176); D,F–G (MNRJ 12924).
FIGURE 24 in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 24. Taringa telopia; A, general view of reproductive system; B, specimen (length: 15 mm) with two differently colored egg masses; C, SEM photograph of the egg mass. A (MNRJ 13782); B–C (MNRJ 15035). Abbreviations: am, ampulla; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina.
FIGURE 2. A–B in Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species
FIGURE 2. A–B, Jorunna spongiosa sp. nov. (MNRJ13781, 14mm); A, dorsal view; B, ventral view; C, Platydoris angustipes (MNRJ 13189, 46mm), photo: V. Padula; D–F, morphotypes of Taringa telopia; D, (MNRJ 15033, 21mm); E, (MNRJ 14924, 17mm); F, (MNRJ 13184), photo: V. Padula; G–H, preserved specimen of Taringa iemanja sp. nov. (MNRJ 13180); E, dorsal view; F, ventral view.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.