Flagtail swellshark (Cephaloscyllium signourum) fish species and information / pictures of Flagtail swellshark - Cephaloscyllium signourum

Flagtail swellshark (Cephaloscyllium signourum) fish species information

Scientific Name
Cephaloscyllium signourum

Common Name
Flagtail swellshark

Biology
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 sur

Classification

Classified By
Last, S?ret & White, 2008
Class
Sharks and Rays (Elasmobranchii)
Order
Ground sharks (Carcharhiniformes)
Family
Cat sharks (Scyliorhinidae)

Distribution

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

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
480 m
Depth To - meters
700 m
Zone
benthopelagic
Environment
Marine; benthopelagic; depth range 480 - 700 m (Ref. 76946)
Trophic Level
4.12 s.e. 0.60 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
74.1 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Moderate vulnerability (44 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated