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. 



eo. 27. HELIX pygmcBa. 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 pygmsea. 

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

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

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

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

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

 Tandon, Moll. Franc, ii. 102. t. 10. f. 26. Helix Kirbii. 

 Sheppard, Linn. Trans, xvi. 162.; Jeffreys, Linn. Trans. 

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

 428. Discus pygmaeus. Fitz. Syst. 99. Patula pygmsea. 

 Held, his, 1837, 916. Euryomphala pygmsea. Beck, Ind. 

 9. Zonites pygmaeus. 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 trochiform, 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. 



