Wiktionary
fat catshark
n. A shark ((taxlink Apristurus pinguis species noshow=1)) of the family ''(taxlink Schyliorynidae family noshow=1)'', closely related to the (vern: Japanese catshark) ((taxlink Apristurus japonicus species noshow=1)). No picture has ever been taken of it.
Wikipedia
Fat catshark
The fat catshark (Apristurus pinguis) is a catshark of the family Scyliorhinidae, found only in the deep waters of the East China Sea. Its length is up to 56 cm.