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10 results for “Chiridota”
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 177 µm. F, Inner surface of wheel from wheel papilla. Diameter of wheel 186 µm. G, Outer surface of wheel from wheel papilla. Diameter of wheel 154 µm. 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 184 µm. I, Wheel in lateral view. Diameter of wheel 132 µm. J, Wheel in slightly oblique view. Diameter of wheel 190 µm.
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 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 2 in A new species of Chiridota (Echinodermata: Holothuroidea: Apodida: Chiridotidae) from Japan, and First record of C. rigida from Japan
FIGURE 2. SEM images of Chiridota rigida Semper, 1867 collected from Wakayama, Japan. A, calcareous ring of right side, viewed from right side, dorsal upper (WMNH-INV-2017-40). B, ossicles from a tentacle of lateral side; C, ossicles from wheel papillae of anterior dorsal; D, ossicles from wall of anterior dorsal (WMNH-INV-2014-36). Abbreviations: cr, curved rod ossicles; fr, flattened rod ossicles; ip, inter-radial plate; rp, radial plate; wh, wheel ossicles; wh', internal side of wheel ossicles.
FIGURE 1 in A new species of Chiridota (Echinodermata: Holothuroidea: Apodida: Chiridotidae) from Japan, and First record of C. rigida from Japan
FIGURE 1. Photographs of Chiridota rigida Semper, 1867 collected from Wakayama, Japan. A, preserved specimen (WMNH-INV-2017-40); and B, living specimen (anterior half only: WMNH-INV-2017-25) of lateral view, dorsal upper. C, content of wheel-papilla (WMNH-INV-2017-40). D, internal organs, dorsal upper (WMNH-INV-2017-39). Abbreviations: ad, anterior dorsal; av, anterior ventral; ca, calcareous ring; go, genital organ; ma, madreporite; pd, posterior dorsal; po, Polian vesicle; pv, posterior ventral; st, stone canal; te, tentacle.
FIGURE 4. A in A new species of Chiridota (Echinodermata: Holothuroidea: Apodida: Chiridotidae) from Japan, and First record of C. rigida from Japan
FIGURE 4. A, SEM image of calcareous ring of right side of Chiridota impatiens sp. nov. (holotype, WMNH-INV-2016-56), viewed from right side, dorsal upper. B–D, SEM images of ossicles (paratype, WMNH-INV-2016-57). B, ossicles from a tentacle of lateral side; C, ossicles from wheel papillae of anterior dorsal; D, ossicles from wall of anterior dorsal. Abbreviations: cr, curved rod ossicles; fr, flattened rod ossicles; ip, inter-radial plate; rp, radial plate; wh, wheel ossicles; wh', internal side of wheel ossicles.
FIGURE 3. A in A new species of Chiridota (Echinodermata: Holothuroidea: Apodida: Chiridotidae) from Japan, and First record of C. rigida from Japan
FIGURE 3. A, preserved specimen; and B, living specimen of Chiridota impatiens sp. nov., lateral view, dorsal upper (holotype, WMNH-INV-2016-56). C, wheel-papilla with emitted content of it; D, content of wheel-papilla; and E, stone canal of C. impatiens sp. nov. (holotype, WMNH-INV-2016-56). F, oral side; and G, outer side of left lateral tentacles; with H (enclosed area with solid line in F), a cluster of sensory cups of C. impatiens sp. nov., dorsal upper (holotype, WMNH-INV- 2016-56). Abbreviations: ad, anterior dorsal; av, anterior ventral; ca, calcareous ring; ma, madreporite; pd, posterior dorsal; pv, posterior ventral; st, stone canal; te, tentacle.
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