North American Land Snails 



of colour. The young have shells of two and one-half whorls 

 before hatching. Diameter, i to 2 inches. 



Habitat. — Jamaica. 



P. gigantea, Scop., is thick, brown obliquely streaked, 

 with a white lip thickened and expanded. Diameter, 2 to 2^ 

 inches. 



Habitat. — Haiti. 



P. Jamaicensis, Chemn., has the nerite form, bright chestnut 

 with pale bands, and a very thick, broad, white rim overlying 

 the columella and outer lip. Diameter, 2 inches. 



Habitat. — Jamaica. 



Genus CEPOLIS, Montf. 



Shell depressed, globular, smooth, umbilicate or not; Hp 

 reflexed at columella, usually thickened with callus, sometimes 

 toothed, one-coloured or conspicuously banded; jaw high, arched; 

 radula long. 



C. cepa, Miill., has afinger-likefold of callus within the mouth, 

 and another on the anterior margin bearing a tooth. The pale 

 chestrtut ground is banded above by spiral lines of brown. This 

 ground snail, i to i^ inches in diameter, is quite dull beside the 

 arboreal species, which are gaily coloured in both body and shell. 



Habitat. — West Indies. 



Genus LYSINOE, H. and A. Ads. 



Shell depressed, globose, granulated or hairy; brown with 

 spiral bands; aperture lunate; lips somewhat reflexed; body 

 very large, coarsely granular above, tail keeled. Three species. 



L. Humboldtiana, Fer., with an elevated spire and three 

 dark bands, is a Texan species. Diameter, i to 2 inches. The 

 type, however, of the genus is the larger, more flattened L. Ghies- 

 breghti, Nyst., with more elaborate banding — a symphony in 

 brown — which inhabits Central America. 



Genus EPIPHRAGMOPHORA, Bering (AGLAIA and 

 ARIONTA of American authors) 



Shell discoidal to globose, four to seven whorls, rarely keeled; 

 horny to chalky; variegated and banded; lip thin, expanded or 



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