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16 results for “Amphiuridae”
Fig. 25. Amphiuridae Ljungman, 1867 in Taxonomic analysis of the genital plates and associated structures in Ophiuroidea (Echinodermata)
Fig. 25. Amphiuridae Ljungman, 1867, SEM, unless otherwise noted. A–N. Amphiura chiajei Forbes, 1843. A–C. adGP and abGP in situ, micro-CT. D. adGP, dorsal aspect. E. adGP, ventral aspect. F. abGP, lateral aspect. G. Radial shield, inner aspect. H. Oral section, oGP. I. Oral GP. J–K. Digital images. J. Oral shield section, ventral disc scales removed, oGP. K. Oral GP in situ after removal of oral shield. L. Oral GP in situ (arrows), inside disc, micro-CT. M. Oral shield, inner aspect. N. Madreporite, inner aspect. O–R. Amphiura filiformis (O.F. Müller, 1776). O. adGP, dorsal aspect. P. adGP, ventral aspect. Q. abGP, lateral aspect. R. Oral GP. S–U. Amphipholis squamata (Delle Chiaje, 1828). S. adGP, lateral aspect. T. abGP lateral aspect. U. Radial shield, inner aspect. Arrowheads (H, J–K) mark oGP. Scale bars: A–H, J–L, O–Q = 0.5 mm; I, M–N, R–U = 0.1 mm.
Fig. 2 in A newly recorded brittle star, Amphiura (Amphiura) digitula (H.L. Clark, 1911) (Ophiuroidea: Amphilepidida: Amphiuridae), from Geoje Island, Korea
Fig. 2. Neighbor joining (NJ) and maximum likelihood (ML) trees based on 657 bp of the mitochondrial COI gene from 21 Amphiura species, including A. (A.) digitula. Bootstrap support values indicated on each node. (A) Phylogenetic tree of neighbor joining based on the kimura 2-parameter distance model, with 1000 non-parametric bootstrap replicates; (B) phylogenetic tree of maximum likelihood based on the GTR + I + G model, with 1000 bootstrap replicates.
FIG. 2 in Two new species of Amphiuridae (Echinodermata, Ophiuroidea) from the southeastern coast of Brazil
FIG. 2. — Amphiura (Amphiura) callida n. sp., holotype 8 mm disk diameter, 45 mm arm length; A, dorsal surface of the disk; B, oral surface of the disk.
FIG. 5. — Amphiodia habilis n in Two new species of Amphiuridae (Echinodermata, Ophiuroidea) from the southeastern coast of Brazil
FIG. 5. — Amphiodia habilis n. sp., holotype 3.5 mm disk diameter, 20 mm arm length; A, dorsal surface; B, detail of the arm spines; C, oral surface, detail of the oral shields and arm spines, the distal oral papillae of the half jaw touch the neighbouring ones almost closing the oral opening. Scale bars: A, C, 1.0 mm; B, 0.5 mm.
FIG. 3 in Two new species of Amphiuridae (Echinodermata, Ophiuroidea) from the southeastern coast of Brazil
FIG. 3. — Amphiura (Amphiura) callida. n. sp., holotype 8 mm disk diameter, 45 mm arm length; A, dorsal surface, primary plates away from each other in the radial areas of the disk, a scale approximately the same size as the primary plates in each interradius of the disk; B, detail of the arm spines; C, detail of the oral shields, distal oral papillae are larger, enlarged, erected, with an acute edge, leaf-like in shape. Scale bars: A, 1.5 mm; B, C, 0.1 mm.
FIG. 4. — Amphiodia habilis n in Two new species of Amphiuridae (Echinodermata, Ophiuroidea) from the southeastern coast of Brazil
FIG. 4. — Amphiodia habilis n. sp., holotype 3.5 mm disk diameter, 20 mm arm length; A, dorsal surface of the disk; B, oral surface of the disk.
FIGURE 6 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 6. Dougaloplus echinatus (Ljungman, 1867) (RUMF-ZE-02040). SEM images of ossicles. A, B, dorsal arm plates, external views, from proximal (A) and distal portion of arm (B); C, D, ventral arm plates, external views from proximal (C) and distal portion of arm (D). E–H, lateral arm plates, from proximal portion of arms, inner view (E), external view (F), distal view (G) and, arm spine articulations (H); I–K, lateral arm plates, from distal portion of arm, inner view (I), external view (J) and distal view (K); L, M, arm spines from proximal portion of arm, middle (L) and aboral most (M); N, arm spine from distal portion of arm. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal side. Abbreviations: DL, dorsal lobe; E, elevated structure; P, perforation; VL, ventral lobe.
FIGURE 4 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 4. Dougaloplus echinatus (Ljungman 1867) (RUMF-ZE-02040), disc cast off. A, aboral disc; B, aboral periphery of the disc; C, aboral central disc; D, aboral region, lacking disc integment; E, oral disc and proximal portion of arms; F, interradial oral disc. Abbreviations: ASH, adoral shield; IP, infradental papillae; OS, oral shield; P, oral papillae; T, tooth.
FIGURE 9 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 9. Aboral views of living specimens. A, Ophiolepis superba H. L. Clark, 1915 (RUMF-ZE-02063); B, Ophiozonella cavernalis Okanishi & Fujita, 2018a (RUMF-ZE-02064); C, Ophiostriatus sexradiatus irimura, 1993 (RUMF-ZE-02067); D, Ophiocoma pusilla (Brock, 1888) (RUMF-ZE-02083); E, Cryptopelta cf. callista H. L. Clark, 1938 (RUMF-ZE-02068); F, Ophiarachnella gorgonia Müller & Troschel, 1842 (RUMF-ZE-02073); G, Ophiopsammus anchista (H. L. Clark, 1911) (RUMF-ZE-02079); H, Ophiarachna mauritiensis de Loriol, 1893a (RUMF-ZE-02070).
FIGURE 5 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 5. Dougaloplus echinatus (Ljungman, 1867) (RUMF-ZE-02040). A, oral proximal portion of arm B, oral middle portion of arm; C, oral distal tip of arm; D, aboral proximal portion of arm; E, aboral distal tip of arm; F, lateral middle portion of arm. Abbreviation: AS, arm spine; TS, tentacle scale.
FIGURE 2. Amphioplus aff. causatus Koheler, 1905 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 2. Amphioplus aff. causatus Koheler, 1905 (RUMF-ZE-02039]). A, aboral view; B, oral view; C, aboral disc and proximal portion of arms; D, oral disc and proximal portion of arms.
FIGURE 8 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 8. Aboral views of living specimens. A, Ophiothrix purpurea von Martens, 1867 (RUMF-ZE-02042); B, Ophiothrix aff. picteti (RUMF-ZE-02044); C, Ophionereis dubia amoyensis A. M. Clark, 1953 (RUMF-ZE-02046); D, Ophionereis fusca Brock, 1888 (RUMF-ZE-02049); E, Ophionereis porrecta Lyman, 1860 (RUMF-ZE-02054); F, Ophionereis tigris H. L. Clark, 1938 (RUMF-ZE-02045); G, Ophiolepis cavitata Okanishi & Fujita, 2018a (RUMF-ZE-02059); H, Ophiolepis cincta Müller & Troschel, 1842 (RUMF-ZE-02058).
FIGURE 7 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 7. Dougaloplus echinatus (Ljungman, 1867) (RUMF-ZE-02040). SEM images of vertebrae. A–D, vertebrae, from proximal portion of the arm, proximal view (A), distal view (B), aboral view (C) and oral view (D); E–H, vertebrae, from distal portion of the arm, proximal view (E), distal view (F), aboral view (G) and oral view (H). Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal side. Abbreviations: AF, aboral muscle flange; DT, depression for tentacle; H, holes; OF, oral muscle flange; RWC, radial water canal.
FIGURE 1 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 1. Sampling localities of examined specimens. Stars indicate location of the submarine caves.
Fig. 1 in A newly recorded brittle star, Amphiura (Amphiura) digitula (H.L. Clark, 1911) (Ophiuroidea: Amphilepidida: Amphiuridae), from Geoje Island, Korea
Fig. 1. Morphological characteristics of Amphiura (Amphiura) digitula (H.L. Clark). (A) dorsal side of disk; (B) radial shields; (C) ventral side of disk; (D) oral frame; (E) dorsal side of proximal arm; (F) ventral side of proximal arm. AS, arm spines; AdSh, adoral shield; Ad- ShSp, adoral shield spine; D, dorsal arm plate; d, distal; L, lateral arm plate; M, madreporite; OP, oral papilla; OSh, oral shield; p, proximal; RS, radial shield; TPa, tooth papilla; TS, tentacle scale; V, ventral arm plate.
FIGURE 3 in A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae)
FIGURE 3. Dougaloplus echinatus (Ljungman 1867). Living specimen, aboral view (RUMF-ZE-02040).
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International Brain Laboratory public data
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