Figs. 200 and 201. Helix Waltoni (Reeve).
In connection with the snails (Helix), we shall note some kindred genera which our space only permits us to name. Such is the genus Bulimus, the European species of which are numerous; some of them very small, others of medium size; of these, Bulimus sultanus (Figs. 204 and 205). In Figs. 206 and 207, the Berry Pupa (P. uva), as an example of another genus, is represented.
Fig. 202. Helix citrina (Linnæus). Fig. 203. Helix Stuartia (Sowerby).
Figs. 204 and 205. Bulimus sultanus (Lamarck).
Yet another typical species may be noted, which is found abundantly amid the grass and shrubs near brooks round Paris and elsewhere. It is Succinea putris, presenting a small, thin, diaphanous shell of a pale amber yellow, marked with close and very fine longitudinal stripes (Fig. 208). The Achatina zebra of Chemnitz is a great snail, which devours shrubs and trees in Madagascar (Fig. 209). Finally, Vitrina, the shell of which is very small and very thin in some species—so small, indeed, in Vitrina fasciata (Fig. 210), that the animal cannot fully enter the shell—occupies a point of transition between Helix and Limax.
Figs. 206 and 207. Pupa uva.
