Squalus raoulensis

DUFFY & LAST, 2007


Kermadec spiny dogfish
Classification: Elasmobranchii Squaliformes Squalidae

Reference of the original description
DUFFY, C. & LAST, P.R. (2007)
Part 4 - Squalus raoulensis sp. nov., a new spurdog of the megalops-cubensis group from the Kermadec Ridge. CSIRO Marine and Atmospheric Research Paper, 14: 31–38.

Image of the original description

Lateral view of Squalus raoulensis sp. nov. holotype (NMNZ P 41678, adult male 651 mm TL). In: DUFFY, C. & LAST, P.R. 2007 Part 4 - Squalus raoulensis sp. nov., a new spurdog of the megalops-cubensis group from the Kermadec Ridge. CSIRO Marine and Atmospheric Research Paper, 14: 31-38

Types
Squalus raoulensis
Holotype: NMNZ: P41678; Paratype: NMNZ: P34436; NMNZ: P42572;


Description :


Citation: Squalus raoulensis DUFFY & LAST, 2007: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2018

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

Ventral view of the head of Squalus raoulensis sp. nov. holotype (NMNZ P 41678, adult male 651 mm TL).In: DUFFY, C. & LAST, P.R. 2007 Part 4 - Squalus raoulensis sp. nov., a new spurdog of the megalops-cubensis group from the Kermadec Ridge. CSIRO Marine and Atmospheric Research Paper, 14: 31-38
Common names
eng Kermadec spiny dogfish

Short Description
This species is distinguished by the following combination of characters: width of mouth 2.4 - 2.7 times horizontal prenarial length; direct pre-second dorsal length 3.6 - 4 times pectoral-fin anterior margin, 2.7 - 2.9 times dorsal caudal margin; preoral length 3 - 3.2 times horizontal prenarial length, 2.3 - 2.5 times internarial width; bifurcate anterior nasal flap; first dorsal fin upright and rounded apically; dorsal-fin spines not robust, width of exposed bases 0.6 - 0.7% TL: first dorsal-fin height 1.2 - 1.4 times its inner margin length; second dorsal-fin height 0.85 - 0.93 times its inner margin length; pectoral-fin anterior margin 1.7 - 1.8 times its inner margin length; preventral caudal margin 1.7 - 2.3 times inner margin of pelvic fin; caudal fin pale with strongly demarcated, whitish posterior margin, no caudal bar; flank denticles unicuspid; monospondylous centra 41-43, precaudal centra 84-85, total centra 112-113; maximum adult size at least 73 cm TL [3330].

Distribution
Southwest Pacific: New Zealand.

Size / Weight / Age
68.1 cm TL (male/unsexed; [3330]); 72.9 cm TL (female)

Habitat
pelagic-oceanic; marine; depth range ? - 320 m [3330]

Remarks
shark-references Species-ID=6831;