Onefin catshark (Pentanchus profundicolus) fish species and Onefin catshark information

Scientific Name
Pentanchus profundicolus

Common Name
Onefin catshark

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Only shark with 5 pairs of gill slits and one dorsal fin (Ref. 244). Head broadly flattened and spatulate, snout elongated and usually longer than mouth width. Labial furrows very long, uppers reaching upper symphysis (Ref. 244). No color pattern, uniformly dark brown (Ref. 244). Caudal fin with a distinct subterminal notch.

Classification

Classified By

Smith & Radcliffe, 1912

Class

Sharks and Rays (Elasmobranchii)

Order

Ground sharks (Carcharhiniformes)

Family

Cat sharks (Scyliorhinidae)

Distribution

Region

Western Central Pacific

Distribution

Western Central Pacific: known from the holotype and only specimen taken from the Mindanao Sea, Philippines. Upon comparing, the holotypes of Apristurus herklotsi and this species are conspecific, thus, suggesting that Pentanchus is a senior synonym of Apristurus. But due to lack of verifiable specimens, herklotsi is tentatively retained in Apristurus.

Range

12°N - 8°N

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1071 m

Depth To - meters

1071 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 1071 - 1071 m (Ref. 58018)

Trophic Level

3.94 s.e. 0.63 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

51.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 1.0000 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 to moderate vulnerability (30 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be

Threat To Humans

Harmless

IUCN Red List Status

Data deficient (DD)

Onefin catshark (Pentanchus profundicolus) fish species and information / pictures of Onefin catshark - Pentanchus profundicolus

Onefin catshark (Pentanchus profundicolus) fish species information

Classification

Distribution

Environment

Physical Size and Genetics

Human Uses and Population