Catalog of Fishes
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Dipturus dhritiae
Bineesh, Kasinath, Akhilesh & Ebert, 2026
Classification: Elasmobranchii Rajiformes Rajidae
Reference of the original description
A new species of longnose skate Dipturus (Rajiformes: Rajidae) from the western Indian Ocean, with a redescription of Dipturus johannisdavisi. Journal of the Ocean Science Foundation, 47, 24–40
A new species of longnose skate Dipturus (Rajiformes: Rajidae) from the western Indian Ocean, with a redescription of Dipturus johannisdavisi. Journal of the Ocean Science Foundation, 47, 24–40
Types
Dipturus dhritiae
Holotype: ZSI: MBRC/F/3079; Paratype: ZSI: MBRC/F/3080; ZSI: MBRC/F/3318; ZSI: MBRC/F/3372; ZSI: MBRC/F/3373; ZSI: MBRC/F/3374; ZSI: MBRC/F/3375; ZSI: MBRC/F/3376;
Dipturus dhritiae
Holotype: ZSI: MBRC/F/3079; Paratype: ZSI: MBRC/F/3080; ZSI: MBRC/F/3318; ZSI: MBRC/F/3372; ZSI: MBRC/F/3373; ZSI: MBRC/F/3374; ZSI: MBRC/F/3375; ZSI: MBRC/F/3376;
Images of types
Description :
Citation: Dipturus dhritiae Bineesh, Kasinath, Akhilesh & Ebert, 2026: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 09/2026
Please send your images of "Dipturus dhritiae" to info@shark-references.com
Dipturus dhritiae Bineesh, Kasinath, Akhilesh & Ebert, 2026; fresh holotype, ZSI/MBRC/F/3079, 1064 mm TL, mature male, dorsal view (upper left) and ventral view (lower right), Kerala, India © K.K. Bineesh
Dipturus dhritiae Bineesh, Kasinath, Akhilesh & Ebert, 2026; fresh holotype, ZSI/MBRC/F/3079, 1064 mm TL, mature male, dorsal view (upper left) and ventral view (lower right), Kerala, India © K.K. Bineesh
Common names
Arabian Skate
Arabian Skate
Short Description
Diagnosis after Bineesh, Kasinath, Akhilesh & Ebert, 2026 [36327]: A large species of Dipturus, distinguished by following combination of characters; single, median, dorsal thorn row present on disc; 5 thorn rows along tail. Preorbital snout length 18.9% TL (16.9–22.1%); preoral snout length 16.0% TL (15.5–19.7%); interorbital distance 0.2 (0.2–0.5) times orbit length; posterior edge of nasal curtain fringed; dorsal and caudal fins bearing small spinules; tail gradually tapering posteriorly; interdorsal space longer than base length of first dorsal fin; dorsal and ventral surfaces of disc generally prickly, except for a smooth region near rostrum; dorsal rostrum with a band of developed prickles, denser anteriorly on snout; anteriormost dorsal and ventral tips of rostrum devoid of prickles; interorbital and branchial regions prickly with a few well-developed dermal denticles. Intestinal spiral valve with 11 turns. Pectoral fins with 90 radials: 31 propterygial, 21 mesopterygial, and 38 metapterygial; pelvic fins with 1+20 radials. Vertebral count: 22 trunk vertebrae, 82 predorsal caudal vertebrae, 22 caudal vertebrae, and 13 vertebrae between origins of dorsal fins, totaling 117 vertebrae.
Diagnosis after Bineesh, Kasinath, Akhilesh & Ebert, 2026 [36327]: A large species of Dipturus, distinguished by following combination of characters; single, median, dorsal thorn row present on disc; 5 thorn rows along tail. Preorbital snout length 18.9% TL (16.9–22.1%); preoral snout length 16.0% TL (15.5–19.7%); interorbital distance 0.2 (0.2–0.5) times orbit length; posterior edge of nasal curtain fringed; dorsal and caudal fins bearing small spinules; tail gradually tapering posteriorly; interdorsal space longer than base length of first dorsal fin; dorsal and ventral surfaces of disc generally prickly, except for a smooth region near rostrum; dorsal rostrum with a band of developed prickles, denser anteriorly on snout; anteriormost dorsal and ventral tips of rostrum devoid of prickles; interorbital and branchial regions prickly with a few well-developed dermal denticles. Intestinal spiral valve with 11 turns. Pectoral fins with 90 radials: 31 propterygial, 21 mesopterygial, and 38 metapterygial; pelvic fins with 1+20 radials. Vertebral count: 22 trunk vertebrae, 82 predorsal caudal vertebrae, 22 caudal vertebrae, and 13 vertebrae between origins of dorsal fins, totaling 117 vertebrae.
Distribution
only from the continental slope, off the southwest coast of India, eastern Arabian Sea, Indian Ocean [36327]
only from the continental slope, off the southwest coast of India, eastern Arabian Sea, Indian Ocean [36327]
Dentition
Teeth unicuspid, with subcircular bases, arranged in longitudinal rows in both sexes; medial teeth cusps sub-conical, long, bluntly pointed posteriorly, directed lingually in both upper and lower jaws; lateral teeth cusps nearly flat and oblique, male cusps longer and narrower [36327]
Teeth unicuspid, with subcircular bases, arranged in longitudinal rows in both sexes; medial teeth cusps sub-conical, long, bluntly pointed posteriorly, directed lingually in both upper and lower jaws; lateral teeth cusps nearly flat and oblique, male cusps longer and narrower [36327]
Remarks
shark-references Species-ID=17940
shark-references Species-ID=17940
