Harlequin catshark (Ctenacis fehlmanni) fish species and information / pictures of Harlequin catshark - Ctenacis fehlmanni

Harlequin catshark (Ctenacis fehlmanni) fish species information

Scientific Name
Ctenacis fehlmanni

Common Name
Harlequin catshark

Biology
Inhabits the outer continental shelf (Ref. 30573). Known only from the holotype. The presence of a very thin-walled, large egg-case in each uterus of the holotype suggests that the species may be ovoviviparous, and presumably have had two young in a litter (Ref. 244). Experts classify this species as oviparous (Ref. 50449). Its large mouth, small teeth, and large pharynx with gillraker papillae might allow it to feed on very small invertebrates, according to S. Springer.

Classification

Classified By

Springer, 1968

Class

Sharks and Rays (Elasmobranchii)

Order

Ground sharks (Carcharhiniformes)

Family

Finback catsharks (Proscylliidae)

Distribution

Region

Western Indian Ocean

Distribution

Western Indian Ocean: off Somalia.

Range

11°N - 9°N

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

70 m

Depth To - meters

170 m

Zone

demersal

Environment

Marine; demersal; depth range 70 - 170 m (Ref. 10004)

Trophic Level

3.5 s.e. 0.37 Based on food items.

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

46 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 1.0078 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest

Vulnerability

Low vulnerability (24 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Fec=2)

Threat To Humans

Harmless

IUCN Red List Status

Data deficient (DD)