New record of the Japanese roughshark, Oxynotus japonicus Yano et Murofushi, 1985 (Elasmobranchii: Squaliformes: Oxynotidae) in Taiwan

A specimen of the rare Japanese prickly dogfi sh, known also as the Japanese roughshark, Oxynotus japonicus Yano et Murofushi, 1985, was recently collected from the north-eastern Taiwan at the Daxi fi sh market. It represents the fi rst record of the family, the genus, and the species in Taiwan. Moreover, previous records were based on only 8 known specimens and the Taiwanese specimen represents the 9th specimen in the world. A detail description of the specimen is provided to document the species.