Dr. Éva Murai szerk.: Miscellanea Zoologica Hungarica 2. 1984 (Budapest, 1984)

Varga, A.: The Cochlostoma genus (Gastropoda, Prosobranchiata) in Yugoslavia. I. Anatomical studies

Figs 16-24: C. septemspirale bosniense (Boettger) (16= male genitalia; 17-23= penis; 24= young male) Figs 25-29: C. septemspirale riedeli Varga (25-26= male genitalia; 27-28= genital of young male; 29= penis)