Ebert, D.A. and Davis, C.D. 2007.

Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific

. Zootaxa. 1393, 1 (Jan. 2007), 1–18. DOI:https://doi.org/10.11646/zootaxa.1393.1.1.