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2,356 results for “Echinodermata”
FIGURE 11. Mesothuria oktaknemus Sluiter, 1901. A in Sublittoral and bathyal sea cucumbers (Echinodermata: Holothuroidea) from the Northern Mozambique Channel with description of six new species
FIGURE 11. Mesothuria oktaknemus Sluiter, 1901. A: External views of specimens IE-2007-804. B–D: SEM photos od ossicles from dorsal body wall (B), ventral body wall (C) and ventral tube feet (D). Scale bars: A = 1cm; B = 20µm; C,D = 10µm.
FIGURE 1 in Myriotrochus (Oligotrochus) meteorensis spec. nov., a new myriotrochid holothurian from the deepsea off NW Africa (Echinodermata: Holothuroidea: Myriotrochidae)
FIGURE 1. Myriotrochus (Oligotrochus) meteorensis spec. nov. (A–C) Calcareous ring of holotype (all to the same scale). (A) Dorsal view (dir: dorsal interradial plate, rdr: right dorsolateral radial plate). (B) Left lateral view (lvr: left ventrolateral radial plate). (C) Ventral view (vr: ventral radial plate). (D–I) Individual plates of calcareous ring of a paratype, outer (top) and anterior (bottom) view (all to the same scale). (D) Dorsal interradial plate. (E) Right dorsolateral radial plate. (F) Right lateral interradial plate. (G) Left ventrolateral radial plate. (H) Right ventral interradial plate (anterior process damaged). (I) Ventral radial plate. (J) Madreporite body (small basal piece broken off). (K–M) Wheel deposits of body wall from paratypes. (K) Detail of a wheel, rim with bifid teeth. (L) Small wheel lacking branched spokes. (M) Common large wheels with branched spokes.
FIGURE 2 in Myriotrochus (Oligotrochus) meteorensis spec. nov., a new myriotrochid holothurian from the deepsea off NW Africa (Echinodermata: Holothuroidea: Myriotrochidae)
FIGURE 2. Myriotrochus (Oligotrochus) meteorensis spec. nov. Wheel parameters and size distribution of wheel diameters (D, µm; nw: number of wheels), with plots of the number of spokes (ns: rhombus), number of teeth (nt: circle), and the diameter of the hub (dh, µm: triangle) in relation to the wheel diameter. Linear regression of ns, nt and dh, µm on D, µm are shown, where ns = 6.65 + (0.03 x D, µm), r² = 0.22, p <0.0001; nt = 19.44 + (0.04 x D, µm), r² = 0.17, p <0.0001; dh, µm = 31.81 + (0.37 x D, µm), r² = 0.47, p <0.0001. (Wheel diameter size classes: 10 µm.)
FIGURE 1 in Rynkatorpa felderi, new species, from a bathyal hydrocarbon seep in the northern Gulf of Mexico (Echinodermata: Holothuroidea: Apodida)
FIGURE 1. Holotype of Rynkatorpa felderi new species. Left, whole animal, total length 80 mm. Right, oral field, showing 12 tentacles each with 2 pairs of terminal digits.
FIGURE 2 in Rynkatorpa felderi, new species, from a bathyal hydrocarbon seep in the northern Gulf of Mexico (Echinodermata: Holothuroidea: Apodida)
FIGURE 2. Rynkatorpa felderi new species. Holotype: A, Anchors from midbody. B, accessory rods from body wall overlying radial muscles, midbody. C, anchor plates from midbody. D, Rods from tentacle digits. E, rods from tentacle stem. Paratype: F, anchor plates from midbody. G, anchor from midbody. All scale lines are 50µm long.
FIGURE 2 in Taxonomy of the monotypic genus Koehleria Cherbonnier, 1988 (Echinodermata: Holothuroidea: Cucumariidae)
FIGURE 2. Pseudocolochirus unica (Cherbonnier, 1988) from South Africa. Ossicles. A. from dorsal body wall; B. rosacelike reticulated plate from ventral body wall; C. podia endplate; D. ventral body wall; E. podia deposits; F. tentacle rods; G. tentacle rosettes.
FIGURE 2. Ovalidota milleri new genus, new species. A. Wheel ossicle, somewhat corroded. B in Ovalidota milleri, a new genus and species of bathyal sea cucumber from the Caribbean Sea (Echinodermata: Holothuroidea: Apodida)
FIGURE 2. Ovalidota milleri new genus, new species. A. Wheel ossicle, somewhat corroded. B. Scanning electrom microscope image of portion of corroded wheel ossicle, showing remains of teeth on inner margin of rim. C. Photograph of portion of corroded wheel ossicle. Note evidence of teeth where spokes meet the wheel rim.
FIGURE 1 in Ovalidota milleri, a new genus and species of bathyal sea cucumber from the Caribbean Sea (Echinodermata: Holothuroidea: Apodida)
FIGURE 1. Ovalidota milleri new genus, new species. Top, live specimen, in situ, on The Wall at Grand Cayman Island, depth 1,500 feet. Photograph: Paul Montemayor. Lower left, Holotype, total length 22 mm, ventral view. Photograph: J.E. Miller. Lower right, Holotype, dorsal view. Photograph J.E. Miller.
FIGURE 1. Chiridota heheva new species. Approximately 4 in Chiridota heheva, new species, from Western Atlantic deepsea cold seeps and anthropogenic habitats (Echinodermata: Holothuroidea: Apodida)
FIGURE 1. Chiridota heheva new species. Approximately 4 individuals in situ near whitish bacterial mats (?) at Florida Escarpment seep site, eastern Gulf of Mexico, 3,270 meters. Alvin Dive 1343. Approximate diameter of body 5 mm. Photo, S. Golubic.
FIGURE 3. A–C, E–J in Chiridota heheva, new species, from Western Atlantic deepsea cold seeps and anthropogenic habitats (Echinodermata: Holothuroidea: Apodida)
FIGURE 3. A–C, E–J, Chiridota heheva new species; D, Chiridota laevis (Fabricius). A, Left ventral radial piece from calcareous ring. Note absence of perforation for radial nerve. Length of piece 1.9 mm. B, Right ventral interradial piece from calcareous ring; length of piece 1.6 mm. C, Bipartite right dorsal radial piece from calcareous ring. Note absence of perforation for radial nerve. Length of piece 2.7 mm. D, Chiridota laevis (Fabricius), bipartite right dorsal radial piece from calcareous ring. Note perforation for radial nerve. Length of piece mm.1.6 mm. E, Rods from tentacles. Length of longest rod 177µm. F, Inner surface of wheel from wheel papilla. Diameter of wheel 186µm. G, Outer surface of wheel from wheel papilla. Diameter of wheel 154µm. H, Three wheels from wheel papillae, two showing inner surface, one showing outer surface. Largest wheel abnormal in having teeth on margin of inner rim. Diameter of largest wheel 184µm. I, Wheel in lateral view. Diameter of wheel 132µm. J, Wheel in slightly oblique view. Diameter of wheel 190µm.
FIGURE 2. Chiridota heheva new species. A in Chiridota heheva, new species, from Western Atlantic deepsea cold seeps and anthropogenic habitats (Echinodermata: Holothuroidea: Apodida)
FIGURE 2. Chiridota heheva new species. A, At Bathymodiolus heckeri mussel beds, Blake Ridge, closeup view showing anterior end of body with white spots (wheel papillae), and extended tentacles. Note fingerlike digits forming a fringe around tentacle terminal disc. Approximate diameter of tentacle stem 1 mm. From Van Dover et al., 2003, with permission. B, One individual at Bathymodiolus heckeri mussel beds, Blake Ridge, showing conspicuous white spots (wheel papillae) against bluish ground color of body wall. Approximate diameter of body 5 mm. Shrimp at right center is Alvinocaris sp. From Van Dover et al., 2003, with permission. C, At Central America wreck showing conspicuous white spots (wheel papillae) against bluish ground color of body wall. Image taken from videotape, Charles E. Herdendorf. Size of specimen unknown. D, At Central America wreck, showing extended feeding tentacles with conspicuous, discrete digits. Size of specimen unknown. Image taken from videotape, Charles E. Herdendorf. E, Oral field with 12 tentacles in a partially contracted state. Note absence of a "ventral gap" between tentacles. Long axis of mouth is 2 mm. F, Closeup view of contracted tentacles showing infolded digits. G, Partially contracted tentacle showing discrete digits. Approximate length of digits 1.5 mm.
FIGURE 4 in A new viviparous species of asterinid (Echinodermata, Asteroidea, Asterinidae) and a new genus to accommodate the species of pantropical exiguoid sea stars
FIGURE 4. Aboral view of the gonads of C. hystera n. sp. filled with late stage juveniles just prior to leaving the parent, Juveniles about 500 µ m.
FIGURE 4 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 4: Ophiophycis richardi n.sp. holotype, disc diameter 4 mm. A: dorsal, B: ventral, E: armbase (SEM). Ophiophycis johni n.sp. holotype, disc diameter 5.5 mm. C: dorsal, D: ventral, F: armbase (SEM).
FIGURE 3 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 3: Amphiophiura bakeri n.sp. holotype, disc diameter 9.5 mm. A: dorsal, B: ventral; paratype, C: dorsal (SEM), D: ventral (SEM). Ophiura (Ophiuroglypha) verrucosa n.sp. holotype, disc diameter 17 mm, E: dorsal, F: ventral.
FIGURE 3. a in A new viviparous species of asterinid (Echinodermata, Asteroidea, Asterinidae) and a new genus to accommodate the species of pantropical exiguoid sea stars
FIGURE 3. a) Colour in life Cryptasterina hystera n.sp. (at left) and Cryptasterina pentagona (at right) Photograph. M Byrne. b) Statue Bay, central Queensland. Boulder and cobble beach. Type locality for C. hystera n. sp. Photograph. S McKillup.
FIGURE 6 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 6: Ophiura (Dictenophiura) spinicantha n.sp. holotype, disc diameter 16 mm. A: dorsal, B: ventral, E: armbase. Ophiura (Dictenophiura) platyacantha n.sp. holotype, disc diameter 14 mm., C: dorsal, D: ventral, F: armbase.
FIGURE 2 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 2: Renetheo felli n.gen. et sp. holotype, disc diameter 1.2 mm. A: dorsal, B: ventral, C: cleaned vertebra (SEM), D: oral region (SEM).
FIGURE 2 in A new viviparous species of asterinid (Echinodermata, Asteroidea, Asterinidae) and a new genus to accommodate the species of pantropical exiguoid sea stars
FIGURE 2. Abactinal surface of holotype of Cryptasterina hystera sp.nov. (R= 10.2 mm) Emergent young visible in the interradius to left of image.
FIGURE 5 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 5: Ophiocten cryptum n.sp. holotype, disc diameter 7.5 mm. A: dorsal, B: ventral. Ophiomidas aurum, n.sp. holotype, disc diameter 4.5 mm. C: dorsal, D: ventral. Ophiophyllum teplium n.sp, holotype, disc diameter 7 mm. E: dorsal, F: ventral.
FIGURE 1 in New brittlestars (Echinodermata: Ophiuroidea) from New Zealand waters
FIGURE 1: Ophiolebes comatulina n.sp. holotype, disc diameter 5 mm. A: dorsal, B: ventral. Ophiolycus farquhari n.sp. disc diameter 6 mm. C: dorsal, D: ventral. Ophiolepis biscalata n.sp. holotype, disc diameter 16 mm. E: dorsal, F: ventral.
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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.