Onefin catshark
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| Pentanchus profundicolus Smith & Radcliffe, 1912 |
The onefin catshark, Pentanchus profundicolus, is a catshark of the family Scyliorhinidae, the only member of the genus Pentanchus. The holotype and only specimen taken was found in the western central Pacific Ocean from the Mindanao Sea in the Philippines, and has a length of 51 cm.
The onefin catshark is the only shark with 5 pairs of gill slits and one dorsal fin. The head is broadly flattened and spatulate, and the snout is elongated and usually longer than mouth width. The labial furrows are very long, uppers reaching upper symphysis. There is no color pattern, the single specimen being uniformly dark brown. The caudal fin has a distinct subterminal notch. The onefin catshark is a poorly known deep-water bottom-dwelling shark inhabiting insular slopes, possibly oviparous.
[edit] References
- "Pentanchus profundicolus". FishBase. Ed. Ranier Froese and Daniel Pauly. may 2006 version. N.p.: FishBase, 2006.
