IUCN Red List Assessment
Red List Category Year Assessed
Data Deficient Red List Criteria Version
Yano, K. Reviewer/s
Kyne, P.M. & Cavanagh, R.D. (Shark Red List Authority) Justification
A rare deepsea shark, known from only seven specimens, with a limited distribution area in Japan where it has been recorded in 150 to 350 m. Reaches a maximum size of at least 64.5 cm total length (TL), but very little information on biology. Bycatch of bottom trawl fisheries in Suruga Bay and Enshu-nada Sea. At this time the species cannot be assessed beyond Data Deficient. However, given that its entire known geographic and depth range is affected by trawl fisheries, and other deepsea species have exhibited declines in Suruga Bay, the species may be threatened and a revised assessment is necessary when more information is available and/or if fisheries expand in the future and catches of this species increase.