HELIX. 143 



of H. rotundata (t. 10. f. 9.), and H. lenticula (t. 10. 

 f. 13.) is striated in front, and crenated on the edge ; 

 somewhat like those of Bulimus. 



60. 27. Helix pygmaa. Pygmy Snail. — Shell 

 rather convex, pale chocolate-brown, semitrans- 

 parent ; aperture semilunar ; umbilicus large, 

 (t. 5. f. 46.) 



Helix elegans. ShepparcTs MSS. Brit. Mus. — Helix pyfrmsea. 

 Drap. p. 114. t. 8. f 8—10.; Gray. Med. Rep. 1821, 239.; 

 Turton, Man. ed. 1. 61. f. 46.; Nihon, Suec 32. ; Jeffrexjs, 

 Linn. Trans, xiii. 343.; Rossm. Icon. viii. f. 532.; Forbes and 

 Hanley, B. M. iv. 83. t. 121. f. 9, 10. — Zonites rupestris. 

 jun. Leach, Moll. S. 78. — H. (Uelomphalus) pygmea. Moq. 

 Tundon, Moll. Franc, ii. 102. t. 10. f. 2—6. — Helix Kirbii. 

 Shepparil, IJnn. Trans, xvi. 162.; Jeffreys, Linn. Trans. 

 xiii. 512. — Helix minuta. Stnder, in Coxe's Travels, iii. 

 428. — Discus pygmaus. Fitz. Sy.st. 99. — Patula pygmsea. 

 Held. Lsis, 1837, 916. — Euryoniphala pygmtea. Beck, Lid, 

 9. — Zonites pygmasus. Gray, Man. 167. t. 5. f. 46. 



Inhab. ditches and wet places, among dead leaves. 

 {Gray, 1821.) 



Shell half the size of the last, of a pale and 

 hardly transparent brown horn-colour, slightly 

 striate, equally convex on both sides, with the apex 

 usually whitish as if decorticated, with four well 

 defined volutions ; aperture roundish crescent-shaped, 

 as long as it is wide ; jaw slender, striated, and 

 crenulated. 



61. 28. Helix umbilicata. Open Snail. — Shell 

 convex, somewhat trochlform, blackish-brown, 

 opaque, striolate ; aperture nearly circular ; 

 umbilicus very large, (t. 5. f. 45.) 



Helix umbilicata. Mont. p. 434. t. 13. f. 2. ; Jeffreys, Linn. 



