Squalus grahami

WHITE, LAST & STEVENS, 2007


Eastern longnose spurdog
Classification: Elasmobranchii Squaliformes Squalidae

Reference of the original description
WHITE, W.T. & LAST, P.R. & STEVENS, J.D. (2007)
Part 7 - Two new species of Squalus of the mitsukurii group from the Indo-Pacific. CSIRO Marine and Atmospheric Research Paper, 14: 71–81

Image of the original description

Lateral view of Squalus grahami sp. nov. holotype (CSIRO H 4476–01, adult male 602 mm TL). In: WHITE, W.T. & LAST, P.R. & STEVENS, J.D. 2007 Part 7 - Two new species of Squalus of the mitsukurii group from the Indo-Pacific. CSIRO Marine and Atmospheric Research Paper, 14: 71-81



Description :


Citation: Squalus grahami WHITE, LAST & STEVENS, 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 grahami" to info@shark-references.com

Ventral view of the head of Squalus grahami sp. nov. holotype (CSIRO H 4476–01, adult male 602 mm TL).In: WHITE, W.T. & LAST, P.R. & STEVENS, J.D. 2007 Part 7 - Two new species of Squalus of the mitsukurii group from the Indo-Pacific. CSIRO Marine and Atmospheric Research Paper, 14: 71-81
Common names
eng Eastern longnose spurdog

Short Description
This species is a moderate-sized one of the ?mitsukurii group? with the following set of characters: very elongate body, depth 10.1-12.6% TL; narrow, moderately long snout, preoral length 2.38-2.53 times its horizontal prenarial length, 10.5-11.3% TL, mouth width 1.54-1.77 (1.66) times its horizontal prenarial length; pre-first dorsal length is 28.9-31.3 (30.0)% TL; pre-second dorsal length is 60.2-62.7 (61.2)% TL; interdorsal space is 22.3-24.7 (23.8)% TL; dorsal fins are small, raked, first dorsal-fin height 6.3-7.2% TL; first dorsal-fin spine short and weak; second dorsal-fin spine slender with moderately broad base; prepectoral length 21.7-23.6 (22.4)% TL; pelvic-caudal space 24.0-26.5 (25.4)% TL; pectoral fin of adults slightly falcate; pectoral-fin inner margin relatively short, 7.1-7.8% TL; caudal bar almost upright, extending narrowly from the caudal fork up the posterior margin of the upper lobe for usually about 0.4 (rarely to 0.6) of its length in immature individuals, upper caudal fringe narrow, sometimes with a narrow central blotch on upper lobe; flank denticles are weakly tricuspidate; monospondylous centra 37-42, precaudal centra 80-87, total centra 105-116 [3333].

Distribution
Western Pacific: Australia. Source: www.gbif.org

Size / Weight / Age
60.2 cm TL (male/unsexed; [3333]); 71.1 cm TL (female)

Habitat
pelagic-oceanic; marine; depth range 148 - 504 m [3333], usually 220 - 450 m [3333]

Remarks
shark-references Species-ID=6760;