Jensen K.R. (1990). Three new species of Ascoglossa (Mollusca, Opisthobranchia) from Hong Kong, and a description of the internal anatomy of Costasiella pallida Jensen, 1985. In: Morton B. (ed.), The Marine Flora and Fauna of Hong Kong and Southern China. Proceedings of the Second International Marine Biological Workshop. Vol. 1. Hong Kong: Hong Kong University Press. pp. 419-432. に掲載されているウミウシ