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Longfin sawtail catshark
The longfin sawtail catshark (''Galeus cadenati'') is a rare, little-known species of catshark, part of the family Scyliorhinidae. Once thought to be a subspecies of the roughtail catshark (''G. arae'') along with the Antilles catshark (''G. antillensis''), it inhabits deep water off the Caribbean coasts of Panama and Colombia. This slim-bodied species has a marbled dorsal color pattern and a prominent crest of enlarged dermal denticles along the dorsal edge of its caudal fin. It can be distinguished from similar species by its relatively longer anal fin and small adult length of under . The longfin sawtail catshark is oviparous. The International Union for Conservation of Nature (IUCN) currently lacks the data to assess its conservation status.
==Taxonomy==
Renowned shark expert Stewart Springer described the longfin sawtail catshark in a 1966 issue of the ''United States Fish and Wildlife Service Fishery Bulletin'', based on a long female collected off Panama on May 30, 1962. He named the species after French zoologist Jean Cadenat, who described the similar African sawtail catshark (''G. polli''). Springer and other authors would subsequently come to regard ''G. cadenati'' as a subspecies of the roughtail catshark (''G. arae'').〔Springer, S. (April 1979). ''A revision of the catsharks, family Scyliorhinidae''. NOAA Technical Report NMFS Circular No. 422: 1–15〕 In 1998 and 2000, Hera Konstantinou and colleagues published revisions of the ''G. arae'' species complex in which they elevated ''G. a. cadenati'' back to the rank of full species, along with the other subspecies ''G. a. antillensis''.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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