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Okamejei leptoura
Last & Gledhill, 2008
Classification: Elasmobranchii Rajiformes Rajidae
Reference of the original description
Two new skates of the genus Okamejei (Rajoidei: Rajidae) from the south-east Indian Ocean. CSIRO Marine and Atmospheric Research Paper, 21, 119–134
Two new skates of the genus Okamejei (Rajoidei: Rajidae) from the south-east Indian Ocean. CSIRO Marine and Atmospheric Research Paper, 21, 119–134
Image of the original description
Okamejei leptoura sp. nov, adult male holotype (CSIRO H 4031–06, 437 mm TL, fresh): A, dorsal surface; B, ventral surface. In: Last, P.R. & GLEDHILL, D.C. 2008 Two new skates of the genus Okamejei (Rajoidei: Rajidae) from the south-east Indian Ocean. CSIRO Marine and Atmospheric Research Paper, 21: 119-134
Okamejei leptoura sp. nov, adult male holotype (CSIRO H 4031–06, 437 mm TL, fresh): A, dorsal surface; B, ventral surface. In: Last, P.R. & GLEDHILL, D.C. 2008 Two new skates of the genus Okamejei (Rajoidei: Rajidae) from the south-east Indian Ocean. CSIRO Marine and Atmospheric Research Paper, 21: 119-134
Types
Okamejei leptoura
Holotype: CSIRO: H 4031-06; Paratype: CSIRO: H 1826-02; CSIRO: H 1822-03; CSIRO: H 1822-04; CSIRO: H 1820-04; CSIRO: H 1210-02; CSIRO: H 822-25; CSIRO: CA 4411; CSIRO: CA 3932; CSIRO: CA 2810; CSIRO: CA 2811; CSIRO: H 5188-04; CSIRO: H 4031-08; CSIRO: H 4031-07; CSIRO: H 3107-04; CSIRO: H 2272-03; CSIRO: H 1828-02; CSIRO: CA 2860; WAM: P 28058-004; WAM: P 26207-006;
Okamejei leptoura
Holotype: CSIRO: H 4031-06; Paratype: CSIRO: H 1826-02; CSIRO: H 1822-03; CSIRO: H 1822-04; CSIRO: H 1820-04; CSIRO: H 1210-02; CSIRO: H 822-25; CSIRO: CA 4411; CSIRO: CA 3932; CSIRO: CA 2810; CSIRO: CA 2811; CSIRO: H 5188-04; CSIRO: H 4031-08; CSIRO: H 4031-07; CSIRO: H 3107-04; CSIRO: H 2272-03; CSIRO: H 1828-02; CSIRO: CA 2860; WAM: P 28058-004; WAM: P 26207-006;
Description :
Citation: Okamejei leptoura Last & Gledhill, 2008: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2024
Please send your images of "Okamejei leptoura" to info@shark-references.com
Dorsal surface of Okamejei leptoura sp. nov. primary female paratype (CSIRO H 4031–07, 376 mm TL, fresh). In: Last, P.R. & GLEDHILL, D.C. 2008 Two new skates of the genus Okamejei (Rajoidei: Rajidae) from the south-east Indian Ocean. CSIRO Marine and Atmospheric Research Paper, 21: 119-134
Dorsal surface of Okamejei leptoura sp. nov. primary female paratype (CSIRO H 4031–07, 376 mm TL, fresh). In: Last, P.R. & GLEDHILL, D.C. 2008 Two new skates of the genus Okamejei (Rajoidei: Rajidae) from the south-east Indian Ocean. CSIRO Marine and Atmospheric Research Paper, 21: 119-134
Common names
Thintail skate
Thintail skate
Short Description
Original diagnosis after LAST & GLEDHILL, 2008 [3313]: A medium-sized species of Okamejei (to at least 56 cm TL) with the following combination of characters: disc narrow with angular apices, width 60– 64% TL, about 1.2 times its length; snout angle 79–93°; tail long, length 1.1–1.2 in distance from snout tip to rear of cloaca; tail slender, width 1.2–1.6 times height at its midlength, 1.3–1.8 times at first dorsal-fin origin; pre upper jaw length 12–14% TL, 1.6–2.0 times internasal width; ventral head length 26–27% TL; snout length 3.1–3.7 times interorbital width; orbit diameter 63–87% interorbital width; first dorsal-fin height 2.3–3.9 in its base length; distance from first dorsal-fin origin to tail tip 3.4–4.3 times first dorsal-fin base length, 2.7–3.1 times caudal-fin length; pelvic fins of medium size, length of posterior lobe of adult males about 16–18% TL, length of anterior lobe 61–78% of posterior lobe; adult clasper 24–26% TL, connected to pelvic-fin inner margin at about 37–39% of its length from cloaca; clasper glans tapering distally, funnel elongate, claw-like, directed posteriorly; anterior margins of both surfaces of disc of males with denticle bands, dorsal bands absent in females and juveniles; nuchal thorns absent; malar thorn patch small; tail with variably developed thorn rows, males with 1–3 poorly developed rows, large females usually with 5 rows (lateral rows usually short); total pectoral radials 72–76; trunk centra 24–28; predorsal centra 67– 77; total centra 122–135; tooth rows in upper jaw 30–39; mainly yellowish dorsally, rostral cartilage not or weakly demarcated from rest of snout; ventral surface pale, white or translucent; ventral sensory pores not dark edged or surrounded by greyish blotches; juveniles with blackish dorsal fins, white caudal fins.
Original diagnosis after LAST & GLEDHILL, 2008 [3313]: A medium-sized species of Okamejei (to at least 56 cm TL) with the following combination of characters: disc narrow with angular apices, width 60– 64% TL, about 1.2 times its length; snout angle 79–93°; tail long, length 1.1–1.2 in distance from snout tip to rear of cloaca; tail slender, width 1.2–1.6 times height at its midlength, 1.3–1.8 times at first dorsal-fin origin; pre upper jaw length 12–14% TL, 1.6–2.0 times internasal width; ventral head length 26–27% TL; snout length 3.1–3.7 times interorbital width; orbit diameter 63–87% interorbital width; first dorsal-fin height 2.3–3.9 in its base length; distance from first dorsal-fin origin to tail tip 3.4–4.3 times first dorsal-fin base length, 2.7–3.1 times caudal-fin length; pelvic fins of medium size, length of posterior lobe of adult males about 16–18% TL, length of anterior lobe 61–78% of posterior lobe; adult clasper 24–26% TL, connected to pelvic-fin inner margin at about 37–39% of its length from cloaca; clasper glans tapering distally, funnel elongate, claw-like, directed posteriorly; anterior margins of both surfaces of disc of males with denticle bands, dorsal bands absent in females and juveniles; nuchal thorns absent; malar thorn patch small; tail with variably developed thorn rows, males with 1–3 poorly developed rows, large females usually with 5 rows (lateral rows usually short); total pectoral radials 72–76; trunk centra 24–28; predorsal centra 67– 77; total centra 122–135; tooth rows in upper jaw 30–39; mainly yellowish dorsally, rostral cartilage not or weakly demarcated from rest of snout; ventral surface pale, white or translucent; ventral sensory pores not dark edged or surrounded by greyish blotches; juveniles with blackish dorsal fins, white caudal fins.
Remarks
shark-references Species-ID=4312;
shark-references Species-ID=4312;
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