testacellidae - Robuta Search

https://biostor.org/reference/1305 British slugs (Pulmonata; Testacellidae, Arionidae, Limacidae) Published in Bull. Brit. Mus. (Nat. Hist.) (Zool.), in 1960, in volume 6, pages 103-226 british slugs pulmonata testacellidae arionidae