Ohnheiser, L. T.; Malaquias, M. A. E.

The Family Diaphanidae (Gastropoda: Heterobranchia: Cephalaspidea) in Europe, With a Redescription of the Enigmatic Species Colobocephalus costellatus M. Sars, 1870

. Zootaxa 2014, 3774, 501–522.