Onefin catshark (Pentanchus profundicolus)

Scientific name: Pentanchus profundicolus Smith & Radcliffe, 1912

Onefin catshark (Pentanchus profundicolus)

The Onefin catshark (Pentanchus profundicolus) is a marine fish of the family Scyliorhinidae.

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. Head broadly flattened and spatulate, snout elongated and usually longer than mouth width. Labial furrows very long, uppers reaching upper symphysis. No color pattern, uniformly dark brown. Caudal fin with a distinct subterminal notch.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Pentanchus profundicolus
Family
Scyliorhinidae (Cat sharks)
Order
Carcharhiniformes (Ground sharks)
Class
Elasmobranchii (Sharks and Rays)
Maximum length
51.0
Depth range
1071 m (3514 ft)
Environment
Marine; bathydemersal; depth range 1071 - 1071 m
Climate
Deep-water
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.
Conservation status (IUCN)
Data deficient (DD)
Threat to humans
Harmless
Uses
Fisheries: of no interest
Resilience
Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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