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Squalus longispinis
Fricke, Durville, Potin & Mulochau, 2023
Classification: Elasmobranchii Squaliformes Squalidae
Reference of the original description
Squalus longispinis, a new species of spurdog (Elasmobranchii: Squalidae) from La Réunion, southwestern Indian Ocean. Taxa, 2, Article ad23203
Squalus longispinis, a new species of spurdog (Elasmobranchii: Squalidae) from La Réunion, southwestern Indian Ocean. Taxa, 2, Article ad23203
Images of types
Description :
Citation: Squalus longispinis Fricke, Durville, Potin & Mulochau, 2023: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2024
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Squalus longispinis Fricke, Durville, Potin & Mulochau, 2023, holotype, MHNRUN uncat. (2022.E.4.1), 730.0 mm TL, southwestern Indian Ocean, La Réunion, France, 18.4 km west-northwest of Cap de La Houssaye, 1,000 m depth © Fricke et al. 2023
Squalus longispinis Fricke, Durville, Potin & Mulochau, 2023, holotype, MHNRUN uncat. (2022.E.4.1), 730.0 mm TL, southwestern Indian Ocean, La Réunion, France, 18.4 km west-northwest of Cap de La Houssaye, 1,000 m depth © Fricke et al. 2023
Common names
La Réunion longspine spurdog
La Réunion longspine spurdog
Short Description
Original diagnosis of Fricke, Durville, Potin & Mulochau, 2023 [32006]: A species of Squalus distinguished from other members of the genus by the following combination of characters: snout short, preorbital length 8.2% of total length (TL), prenarial length in inner nostril-narial furrow space 0.86; body very high, abdomen height 16.4% of TL, head height in trunk height 0.5; dorsal fin beginning on a vertical above posterior lobes of pectoral fin; second dorsal fin positioned in the middle between anal fin and caudal fin; first and second dorsal-fin spines long, first dorsal-fin spine 5.8% of TL, second-dorsal fin spine 5.3% of TL; flank denticles tricuspid; monospondylous vertebrae 37, precaudal vertebrae 86, caudal vertebrae 26, total vertebrae 112; upper caudal-fin lobe broad; caudal fin distally with a narrow, light grey margin.
Original diagnosis of Fricke, Durville, Potin & Mulochau, 2023 [32006]: A species of Squalus distinguished from other members of the genus by the following combination of characters: snout short, preorbital length 8.2% of total length (TL), prenarial length in inner nostril-narial furrow space 0.86; body very high, abdomen height 16.4% of TL, head height in trunk height 0.5; dorsal fin beginning on a vertical above posterior lobes of pectoral fin; second dorsal fin positioned in the middle between anal fin and caudal fin; first and second dorsal-fin spines long, first dorsal-fin spine 5.8% of TL, second-dorsal fin spine 5.3% of TL; flank denticles tricuspid; monospondylous vertebrae 37, precaudal vertebrae 86, caudal vertebrae 26, total vertebrae 112; upper caudal-fin lobe broad; caudal fin distally with a narrow, light grey margin.
Dentition
Teeth similar in both jaws, upper teeth slightly smaller than lower teeth; teeth unicuspid with cusp thick, short and oblique; mesial cutting edge straight; mesial heel rounded on lower jaw and notched on upper jaw; distal heel notched; apron conspicuously short and slender. 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 11–10 rows on lower jaw. Lateral and lower sides of head with numerous sensory pores. [32006]
Teeth similar in both jaws, upper teeth slightly smaller than lower teeth; teeth unicuspid with cusp thick, short and oblique; mesial cutting edge straight; mesial heel rounded on lower jaw and notched on upper jaw; distal heel notched; apron conspicuously short and slender. 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 11–10 rows on lower jaw. Lateral and lower sides of head with numerous sensory pores. [32006]
Remarks
shark-references Species-ID=16503;
shark-references Species-ID=16503;
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