Cephaloscyllium signourum

LAST, SÉRET & WHITE, 2008


Flagtail swellshark
Classification: Elasmobranchii Carcharhiniformes Scyliorhinidae

Reference of the original description
LAST, P.R. & SÉRET, B. & WHITE, W.T. (2008)
New swellsharks (Cephaloscyllium: Scyliorhinidae) from the Indo-Australian region. CSIRO Marine and Atmospheric Research Paper, 22: 129–146

Image of the original description

Cephaloscyllium signourum sp. nov.: dorsal view, lateral view of juvenile paratype (QM I 20641, female 236 mm TL). In: LAST, P.R. & SÉRET, B. & WHITE, W.T. (2008): New swellsharks (Cephaloscyllium: Scyliorhinidae) from the Indo-Australian region. CSIRO Marine and Atmospheric Research Paper, 22: 129-146

Types
Cephaloscyllium signourum
Holotype: QM: I 25956 ; Paratype: QM: I 20641;


Description :


Citation: Cephaloscyllium signourum LAST, SÉRET & WHITE, 2008: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 01/2021

Please send your images of "Cephaloscyllium signourum" to info@shark-references.com

Cephaloscyllium signourum sp. nov.: dorsal view, lateral view of holotype (QM I 25956, female 741 mm TL); In: LAST, P.R. & SÉRET, B. & WHITE, W.T. (2008): New swellsharks (Cephaloscyllium: Scyliorhinidae) from the Indo-Australian region. CSIRO Marine and Atmospheric Research Paper, 22: 129-146
Common names
eng Flagtail swellshark

Short Description
This medium-sized species has the following set of characters which was based on the holotype: head 7.5% TL in height, trunk 16.3% TL in width; origin of first dorsal-fin is over the anterior pelvic-fin base; prenarial 3.6% TL in length; preorbital snout length is 2.0 times prenarial length, 3.0 in prepectoral length, 6.6 in prepelvic length; snout-vent length long, 51.7% TL; nostril width 2.7% TL; eye-spiracle space narrow, 0.5% TL; pectoral fin medium-sized, its height 12.8% TL, posterior margin 11.9% TL; anal fin tall, 4.0% TL; anal-caudal space is 5.0% TL; precaudal length is 76% TL; interdorsal space is 6.6% TL; teeth with 3 well-developed cusps near symphysis of upper jaw; mostly unicuspidate flank denticles; back without the greatly enlarged denticles; adult clasper unknown; vertebral centra 115-116; tooth count high, 84 teeth in upper jaws, 97 in lower jaws; color of upper half of body medium brown, with a variegated pattern that is not clearly demarcated from the ventral surface; dark saddles (10) evident on body and tail; dorsal fins are pale variegated; dark blotch absent over gills; marking on posterior margin of terminal lobe of caudal fin dark, anteriorly directed, V-shaped; upper surface of pectoral-fin with a dark brown central blotch; centered over ventral origin of caudal fin is a well-developed saddle; ventral surface is uniformly greyish or white in color; juveniles are pale with dark transverse markings appearing as narrow bars and hollow saddles; markings between spiracles not separated into two unconnected pseudo-ocelli [3340].

Distribution
Western Pacific: Australia; possibly occurring off the islands of New Caledonia, Fiji, and Vanuatu.

Size / Weight / Age
74.1 cm TL (female)

Habitat
benthopelagic; marine; depth range 480 - 700 m [3340]

Remarks
shark-references Species-ID=1312;