Squalus nasutus

LAST, MARSHALL & WHITE, 2007


Western longnose spurdog
Classification: Elasmobranchii Squaliformes Squalidae

Reference of the original description
LAST, P.R. & MARSHALL, L.J. & WHITE, W.T. (2007)
Part 8 - Squalus nasutus sp. nov, a new long-snouted spurdog of the S. japonicus group from the Indian Ocean. CSIRO Marine and Atmospheric Research Paper, 14: 83–90

Image of the original description

Lateral view of: A. Squalus nasutus sp. nov. holotype (CSIRO H 2590–12, female 508 mm TL); In: LAST, P.R. & MARSHALL, L.J. & WHITE, W.T. 2007 Part 8 - Squalus nasutus sp. nov, a new long-snouted spurdog of the S. japonicus group from the Indian Ocean. CSIRO Marine and Atmospheric Research Paper, 14: 83-90

Synonyms / new combinations and misspellings
Squalus cf. nasutus



Description :


Citation: Squalus nasutus LAST, MARSHALL & WHITE, 2007: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 03/2021

Please send your images of "Squalus nasutus" to info@shark-references.com

Ventral view of the head of A. Squalus nasutus sp. nov. holotype (CSIRO H 2590–12, female 508 mm TL); In: LAST, P.R. & MARSHALL, L.J. & WHITE, W.T. 2007 Part 8 - Squalus nasutus sp. nov, a new long-snouted spurdog of the S. japonicus group from the Indian Ocean. CSIRO Marine and Atmospheric Research Paper, 14: 83-90
Common names
eng Western longnose spurdog

Short Description
This small species of the "japonicus group" has the following set of characters: very elongate body, depth 9.4-11.4% TL; narrow and long snout, preoral length 1.85-2.01 times its horizontal prenarial length, 11.1-11.7% TL; large eyes, 4.3-5.1% TL; secondary lobe of anterior nasal flap is well developed; small, raked dorsal fins; first dorsal-fin spine short, weak; second dorsal-fin spine short with strong base; pectoral fin of adult not falcate; pectoral-fin inner margin is short, 6.6-7.1% TL; caudal bar almost upright, short, broad, extending from the caudal fork to the posterior margin of the upper lobe for 0.4-0.5 of its length, upper caudal blotch is somewhat linear, and is located near the dorsal margin of fin lobe; flank denticles weakly tricuspidate; monospondylous centra 36-39, precaudal centra 78-81, total centra 103-109 [3334].

Distribution
Eastern Indian Ocean: Western Australia. Probably extending to Westerm Pacific, the Philippines and Indonesia. Source: www.gbif.org

Size / Weight / Age
49.9 cm TL (male/unsexed; [3334]); 59 cm TL (female)

Habitat
pelagic-oceanic; marine; depth range 300 - 850 m [3334], usually 300 - 400 m [3334]

Remarks
shark-references Species-ID=6802;