Walsh, J. H.; Ebert, D. A.

A Review of the Systematics of Western North Pacific Angel Sharks, Genus Squatina, With Redescriptions of Squatina formosa, S. japonica, and S. nebulosa  (Chondrichthyes: Squatiniformes, Squatinidae)

. Zootaxa 2007, 1551, 31–47.