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2,356 results for “Echinodermata”
Figure 5 in The sea cucumbers of Camden Sound in northwest Australia, including four new species (Echinodermata: Holothuroidea)
Figure 5. Photos of live specimen belonging to a Stichopus unresolved species complex (WAM Z89009; estimated 110 mm long live): a, dorsal view; b, ventral view; c, in situ view.
Figure 2. a, b in The sea cucumbers of Camden Sound in northwest Australia, including four new species (Echinodermata: Holothuroidea)
Figure 2. a, b, photos of live holotype specimen of Holothuria (Metriatyla) keesingi O'Loughlin sp. nov. (WAM Z89006): a, dorso view; b, latero-ventral view with ventrum and tube feet along upper side, dorsal papilla underneath. c, photo of dorsal view of live specimen of Holothuria (Thymiosycia) gracilis Semper, 1868 (WAM Z89008; estimated 125 mm long live).
Figure 4 in The sea cucumbers of Camden Sound in northwest Australia, including four new species (Echinodermata: Holothuroidea)
Figure 4. Ossicles from holotype (WAM Z89006; rods and small button mid-top and bottom) and paratype (WAM Z89005; tables, buttons) specimens of Holothuria (Metriatyla) keesingi O'Loughlin sp. nov. (in specimens table discs up to 240 µm across; table spires up to 176 µm long; buttons up to 200 µm long; rods up to 336 µm long).
Fig. 7 in The First Record of Ophioteichus multispinum (Echinodermata: Ophiuroidea) from Japan, with Notes on Its Ossicle Description and Ecology
Fig. 7. Ophioteichus spp., living state, from intertidal region of Susami, Wakayama Prefecture (A–E) and Tosashimizu, Kochi Prefecture (F). A, B, 6 November 2021; C, 21 November 2021; D, E, 4 December 2021; F, 28 December 2021.
Fig. 5 in The First Record of Ophioteichus multispinum (Echinodermata: Ophiuroidea) from Japan, with Notes on Its Ossicle Description and Ecology
Fig. 5. Ophioteichus multispinum (NSMT E-14161), SEM photographs. A–J, Vertebrae from proximal (A–E) and distal (F–J) portions of an arm, distal (A, F), proximal (B, G), ventral (C, H), dorsal (D, I) and lateral (E, J) views; K–M, lateral arm plates from proximal portion of an arm, external (K), internal (L) and distal (M) views. Arrowheads indicate orientation: d, dorsal side; dis, distal side; pro, proximal side; v, ventral side. Abbreviations: DF, dorsal muscle flange; DL, dorsal lobe; FB, depression for tentacle; H, hole; MO, muscle opening; NO, nerve opening; P, perforation; PR, protrusion; RWF, radial water canal; SA, spine articulation; SP, spur; VF, ventral muscle flange; VL, ventral lobe. Scale bars: 100 µm (A–F, M); 50 µm G–J; 200 µm (K, L).
Fig. 3 in The First Record of Ophioteichus multispinum (Echinodermata: Ophiuroidea) from Japan, with Notes on Its Ossicle Description and Ecology
Fig. 3. Ophioteichus multispinum (NSMT E-14161). A, Dorsal disc; B, dorsal central part of disc; C, dorsal peripheral part of disc; D, dorsal interradial peripheral part of disc; E, ventral disc; F, jaws; G, ventral disc and proximal portion of arm; H, ventral interradial part of disc. Abbreviations: AdSh, adradial shield; AS, arm spine; AdShSp, adoral shield spine; AVAP, accessary ventral arm plate; BSc, buccal scale; CPP, central primary plate; DAP, dorsal arm plate; GS, genital slit; IPa, infradental papilla; LAP, lateral arm plate; MP, marginal plate; OP, oral plate; OSh, oral shield; P, plate; PP, primary plate; RS, radial shield: TS, tentacle scale; VAP, ventral arm plate; 2°AdShSp, secondary adoral shield spine; 2°IPa, secondary infradental papilla. Scale bars: 1 mm.
Fig. 2 in The First Record of Ophioteichus multispinum (Echinodermata: Ophiuroidea) from Japan, with Notes on Its Ossicle Description and Ecology
Fig. 2. Ophioteichus multispinum (NSMT E-14161), living, in situ, exposed from sand ground (A, B) and anesthetized (C, D) states. A, C, Dorsal view; B, D, ventral view. Scale bars: 0.5 cm (C, D).
Fig. 1 in The First Record of Ophioteichus multispinum (Echinodermata: Ophiuroidea) from Japan, with Notes on Its Ossicle Description and Ecology
Fig. 1. Sampling locations of Ophioteichus multispinum (a solid circle, NSMT E-14161E-14163) and Ophioteichus spp. (two blank circles).
Fig. 3 in Deepest known novel species of the genus Ophiuroglypha Hertz, 1927 (Echinodermata: Ophiuroidea) from the central rift zone, Philippine Sea
Fig. 3. Ophiuroglypha fendouzhe sp. nov., holotype (IDSSE-EEB-SW0250). A. Dorsal aspect. B. Ventral aspect. C. Central disc (overlapping disc scales). D. Dorsal arm base. E. Ventral disc, and mouth. F. Ventral arm base. G. Dorsal arm. H–J. Ventral arm (partially broken arm spine highlighted in the Fig. I). K–L. Lateral arm. Abbreviations: arc = arm comb; ars = arm spine; as = adoral shield; asp = adoral shield spine; cpp = central primary plate; dap = dorsal arm plate; gs = genital slit; lap = lateral arm plate; m = madreporite; op = oral plate; os = oral shield; otp = oral tentacle pore; rs = radial shield; tp = tentacle pore; ts = tentacle scale; vap = ventral arm plate; vts = ventral tentacle scale. Scale bars: A–B = 2 mm; C, E–F =1 mm; D, G–L = 500 μm.
Fig. 5 in Deepest known novel species of the genus Ophiuroglypha Hertz, 1927 (Echinodermata: Ophiuroidea) from the central rift zone, Philippine Sea
Fig. 5. Ophiuroglypha fendouzhe sp. nov., paratype (IDSSE-EEB-SW0251). A. Dorsal aspect. B. Ventral aspect. C. Central disc (overlapping disc scales). D. Ventral arm. E. Dorsal arm. F. Lateral arm. Abbreviations: ars = arm spine; as = adoral shield; asp = adoral shield spine; cpp = central primary plate; dap = dorsal arm plate; gs = genital slit; lap = lateral arm plate; m = madreporite; op = oral plate; os = oral shield; otp = oral tentacle pore; tp = tentacle pore; ts = tentacle scale; vap = ventral arm plate; vts = ventral tentacle scale. Scale bars: A–B = 2 mm; C, E–F = 500 μm; D = 1 mm.
Fig. 4 in Deepest known novel species of the genus Ophiuroglypha Hertz, 1927 (Echinodermata: Ophiuroidea) from the central rift zone, Philippine Sea
Fig. 4. Ophiuroglypha fendouzhe sp. nov., paratype (IDSSE-EEB-SW0251). A–C. Lateral arm plate. D–H. Vertebrae. D. Distal view (right side of the structure partially broken). E. Proximal view. F. Ventral view. G. Dorsal view. H. Dorsolateral view. Abbreviations: asa = arm spine articulation; d = dorsal; dist = distal; kn = knob; mo = muscle opening; no = nerve opening; pb = podial basin; prox = proximal; tfp = tube foot pore; v = ventral. Scale bars: A, C, F–H = 500 μm; B = 100 μm; D–E = 300 μm.
Appendix 2 in Temporary expansion to shelf depths rather than an onshore-offshore trend: the shallow-water rise and demise of the modern deep-sea brittle star family Ophiacanthidae (Echinodermata: Ophiuroidea)
Appendix 2. Matrix for phylogenetic analysis
Data from: Phylogeny and morphologic evolution of the Ordovician Camerata (Class Crinoidea, Phylum Echinodermata)
The subclass Camerata (Crinoidea, Echinodermata) is a major group of Paleozoic crinoids that represents an early divergence in the evolutionary history and morphologic diversification of class Crinoidea, yet phylogenetic relationships among early camerates remain unresolved. This study conducted a series of quantitative phylogenetic analyses using parsimony methods to infer relationships of all well-preserved Ordovician camerate genera (52 taxa), establish the branching sequence of early camerates, and test the monophyly of traditionally recognized higher taxa, including orders Monobathrida and Diplobathrida. The first phylogenetic analysis identified a suitable outroup for rooting the Ordovician camerate tree and assessed affinities of the atypical dicyclic family Reteocrinidae. The second analysis inferred the phylogeny of all well-preserved Ordovician camerate genera. Inferred phylogenies confirm: (1) the Tremadocian genera Cnemecrinus and Eknomocrinus are sister to the Camerata; (2) as historically defined, orders Monobathrida and Diplobathrida do not represent monophyletic groups; (3) with minimal revision, Monobathrida and Diplobathrida can be re-diagnosed to represent monophyletic clades; (4) family Reteocrinidae is more closely related to camerates than to other crinoid groups currently recognized at the subclass level; and (5) several genera in subclass Camerata represent stem taxa that cannot be classified as either true monobathrids or true diplobathrids. The clade containing Monobathrida and Diplobathrida, as recognized herein, is termed Eucamerata to distinguish its constituent taxa from more basally positioned taxa, termed stem eucamerates. The results of this study provide a phylogenetic framework for revising camerate classification, elucidating patterns of morphologic evolution, and informing outgroup selection for future phylogenetic analyses of post-Ordovician camerates.
Figure, 18. Tegulaster alba (R = 5 mm, paratype, NMV F45118): a, abactinal view; b, actinal view. in A molecular and morphological revision of genera of Asterinidae (Echinodermata: Asteroidea)
Figure, 18. Tegulaster alba (R = 5 mm, paratype, NMV F45118): a, abactinal view; b, actinal view.
Figure 1 in New records of the shrimp Periclimenes crinoidalis Chace, 1969 (Decapoda: Palaemonidae) and its crinoid host Nemaster grandis A.H. Clark, 1909 (Echinodermata: Crinoidea) in the Caribbean Sea
Figure 1. Crinoid Nemaster grandis, in Chichiriviche de la Costa, Vargas State.
Figure 2. RRS William Scoresby served the Discovery Expedition for eight voyages from 1926 in The Discovery Expedition sea cucumbers (Echinodermata: Holothuroidea)
Figure 2. RRS William Scoresby served the Discovery Expedition for eight voyages from 1926 to 1951.
Fig. 1 in A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence
Fig. 1. Sampling location of Ophiopsila cf. polyacantha (star symbol).
Fig. 1 in Shallow-water Comatulids (Echinodermata: Crinoidea) from Ambon and Lombok Islands, Indonesia
Fig. 1. Sampling localities in Lombok and Ambon islands, Indonesia.
Figure 4 in An annotated catalogue of Echinodermata types in the Museu de Zoologia, Universidade de São Paulo, Brazil
Figure 4. (A) Thyone waltinhoi (MZUSP 1635, holotype); (B) Thyone florianoi (MZUSP 1351, holotype); (C) Yemoja brasiliensis (MZUSP 1025, holotype); (D) Ophiothrix trindadensis (MZUSP 1425, neotype); (E) Ophiothrix spiniformis (MZUSP 2709, paratype) and (F) Ophiothrix troscheli (MZUSP 2708, paratype). Photographs: D, by R. Alitto; E, F by A. Santana.
Figure 3 in An annotated catalogue of Echinodermata types in the Museu de Zoologia, Universidade de São Paulo, Brazil
Figure 3. Type specimens. (A) Paulayellus gustavi (MZUSP 1619, holotype); (B) Psolus vitoriae (MZUSP 1632, holotype); (C) Psolus thandari (MZUSP 593, holotype); (D) Psolus tommasi (MZUSP 583, holotype); (E) Psolidium lonchostinum (MZUSP 744, holotype); (F) Psolidium nanoplax (MZUSP 589, holotype); (G) Sclerothyone oloughlini (MZUSP 1884, holotype); (H) Sclerothyone reichi (MZUSP 1644, holotype).
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Allen Brain Atlas
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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.
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