1. Baker, H.B., Some Antillean Sagdidae or Polygyridae, Nautilus, 1940, vol. 54, no. 2, pp. 54–62.
2. Baker, H.B., Heterurethrous and aulacopod, Nautilus, 1955, vol. 68, no. 4, pp. 109–112.
3. Baur, B., Chen, X., and Baur, A., Genital dimorphism in natural populations of the land snail Chondrina clienta and the influence of the environment on its expression, J. Zool. (London), 1993, vol. 231, pp. 275–284.
4. Cooke, C.M. and Kondo, Y., Revision of Tornatellinidae and Achatinellidae, Bernice P.
Bishop Museum Bull., 1960, vol. 221, pp. 1–303.
5. Dogel’, V.A., Oligomerizatsiya gomologichnykh organov kak odin iz glavnykh putei evolyutsii zhivotnykh (Oligomerization of Homologous Organs as One of the Main Ways of the Evolution of Animals), Leningrad: Len. Gos. Univ., 1954.