206 EXPLANATION 



Fig. 



22 Animal of Helix varians. 



23 Helix microdonta Desh., from Fer. pi. 70, fig. 13. 



24 " MOOREANA. 



PLATE LXXIX 



1 SUCCINEA LINEATA. 



2 Helix infumata Gould. 



3 BuLiMUS Floridianus Pfr., from original specimen. 



4 Helix milium Morse — very highly magnified. 



g U U U U (1 il 



6 Melampus coffeus Lin. var. ? 



7 Succinea retusa Lea, from Phil. Tr. 1. c. pi. 19, fig. 86. 



8 Melampus olivaceus Carpenter. 



9 ViTRiNA Angelica Beck — highly magnified. 



10 Helix bulbina Desh., from Fer. pi. 85, fig. 1 7. 



11 " NEMORiVAGA Val., from Voy. de la Venus pi. 1, fig. 1 a. 



12 BuLiMUS EXCELSUS Gould, from Bost. Journ. 1857, pi. xiv. fig. 3. 



13 Helix devia Gould. 



14 Succinea rusticana Gould, from Ex. Ex. fig. 29. 



16 BuLiMUS Californicus Reeve, No. 378 — increased one half. 



16 Animal of Alexia myosotis Drap. 



1 7 Pupa incaxa Binn., var. fasciata. 



18 Succinea Salleana Pfr. from Chemn. 



19 AcHATiNA Californica Reeve, No. 115 — natural size. 



20 Truncatella Californica Pfr. — greatly enlarged. 



21 Helix Mormonum Pfr., from type. 



22 Same as 20. 



23 Cylindrella Goldfussi Mke. — twice the natural size. 



PLATE LXXX. 



1 BuLiMus alternatus Say, var. ? 



2 Helix friabilis. 



3 BuLiMUS ALTERNATUS Say, from his drawing. 



4 Succinea Grcenlandica Beck — enlarged. 



5 " LINEATA. 



6 BuLiMus LiQUABiLis Reevc, No. 387. 



