Template:Kobelt, 1905
- Kobelt, W. 1905–1906. Die Raublungenschnecken (Agnatha). Abtheilung 2, Streptaxidae und Daudebardiidae. In: Systematisches Conchylien-Cabinet von Martini & Chemnitz, ed. 2. Bd. 1, Abt. 12B, Theil 2: 211 pp. Nürnberg: Bauer & Raspe.[pp. 1–96, pls 42–59 (1905); 97–211, pls 60–71 (1906)]. BHL