Catalog of Fishes
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Squalus hima
Sweta & Bineesh, 2024
Classification: Elasmobranchii Squaliformes Squalidae
Reference of the original description
Squalus hima sp. nov. (Squaliformes, Squalidae), a New Species of Dogfish Shark from the Arabian Sea, Off Southwest India. Records of the Zoological Survey of India, 124, 61-74
Squalus hima sp. nov. (Squaliformes, Squalidae), a New Species of Dogfish Shark from the Arabian Sea, Off Southwest India. Records of the Zoological Survey of India, 124, 61-74
Description :
Citation: Squalus hima Sweta & Bineesh, 2024: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 08/2024
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Squalus hima Sweta & Bineesh, 2024, MBRCF3169, male, 434 mm TL, Kollam, Southwest coast of India, 300-600 m depth © Beura et al. 2024
Squalus hima Sweta & Bineesh, 2024, MBRCF3169, male, 434 mm TL, Kollam, Southwest coast of India, 300-600 m depth © Beura et al. 2024
Common names
Indian spurdog
Indian spurdog
Short Description
Original diagnosis of Beura, Bineesh, Das, Swetha & Bhaskar, 2024 [33197]: A Squalus species that is distinguished from its regional congeners species by the following characters: short and pointed snout, snout length 5.6-6.0% of TL and 22.8-24.1% of HL; pre-orbital length 5.8-6.5 % of TL; prenarial length in inner nostril-narial furrow space is 0.88- 1.58; external nasal opening rounded in shape; teeth in both jaws are of similar shape and structure; teeth of upper jaw are smaller than the lower jaw; body high and slightly arched from dorsal origin of first gill slit to pre-first dorsal fin; spiracles placed little above the eyes; eye to spiracle space is 0.7-0.9% of TL; head height is 1.2-1.4 in trunk height ; origin of first dorsal fin behind the insertion of pectoral fin; second dorsal fin positioned between the pelvic & caudal fin; first dorsal spine length is 1.9-2.9% TL; second dorsal spine length is 2.8-3.6% TL; pelvic fin free rear tip pointed; anal fin absent; caudal fin large with upper lobe wide and dorsal margin almost straight in shape; flank denticles tricuspid; monospondylous vertebrae 16-22; pre-caudal vertebrae 61- 63; caudal vertebrae 23; total vertebrae 84-86.
Original diagnosis of Beura, Bineesh, Das, Swetha & Bhaskar, 2024 [33197]: A Squalus species that is distinguished from its regional congeners species by the following characters: short and pointed snout, snout length 5.6-6.0% of TL and 22.8-24.1% of HL; pre-orbital length 5.8-6.5 % of TL; prenarial length in inner nostril-narial furrow space is 0.88- 1.58; external nasal opening rounded in shape; teeth in both jaws are of similar shape and structure; teeth of upper jaw are smaller than the lower jaw; body high and slightly arched from dorsal origin of first gill slit to pre-first dorsal fin; spiracles placed little above the eyes; eye to spiracle space is 0.7-0.9% of TL; head height is 1.2-1.4 in trunk height ; origin of first dorsal fin behind the insertion of pectoral fin; second dorsal fin positioned between the pelvic & caudal fin; first dorsal spine length is 1.9-2.9% TL; second dorsal spine length is 2.8-3.6% TL; pelvic fin free rear tip pointed; anal fin absent; caudal fin large with upper lobe wide and dorsal margin almost straight in shape; flank denticles tricuspid; monospondylous vertebrae 16-22; pre-caudal vertebrae 61- 63; caudal vertebrae 23; total vertebrae 84-86.
Distribution
upper continental slope off Kerala, off Kanyakumari, Wadge Bank area in the Arabian Sea [33197]
upper continental slope off Kerala, off Kanyakumari, Wadge Bank area in the Arabian Sea [33197]
Dentition
Teeth similar in both jaws, upper teeth slightly smaller than lower teeth (Fig 3.A); teeth tricuspid with cusp thick; mesial cutting edge straight. Upper jaw with three series of functional teeth and two series on lower jaw in holotype. Upper teeth in holotype in 11–11 rows and 13–13 rows on lower jaw. [33197]
Teeth similar in both jaws, upper teeth slightly smaller than lower teeth (Fig 3.A); teeth tricuspid with cusp thick; mesial cutting edge straight. Upper jaw with three series of functional teeth and two series on lower jaw in holotype. Upper teeth in holotype in 11–11 rows and 13–13 rows on lower jaw. [33197]
Remarks
shark-references Species-ID=17414;
shark-references Species-ID=17414;
