HELIX. 23 



H. BARBADENSis. Orbicular-coiivex^ imper- 

 forated, depressed, smooth, pale reddish ; spire 

 obtuse ; aperture narrowed, with the margins red 

 and connected ; outer lip marginated ; sometimes 

 there is a white band on the last whorl; diam. f. 



H. siNUATA. Imperforate, sub-globular, and 

 slightly keeled ; lip reflected, with four teeth in- 

 side, and three plaits without ; the shell is reddish 

 brown, and covered with most minute raised 

 dots; diam. |. W. 33. 29. 



H. HiPPOCASTANUM. Imperforate, sub-glo- 

 bose, slenderly striated, chestnut ; the last whorl 

 girded with a white band ; columella armed with 

 a great tooth ; inner margin of the outer lip many- 

 toothed ; diam. |. W. 33. 38. 



H. ARBUSTORUM. Rather globose, perforated, 

 yellowish or brownish, marbled, and girded with 

 a brown band, slightly striated ; spire short, 

 conoid; outer lip marginated and reflected; diam. 

 |. B. T. 25. 



H. NEMORALis. Sub-globosc, imperforated, 

 slightly striated, variously coloured, and banded ; 

 outer lip marginated, and dark chocolate; diam. 

 I. B. T. 23. 



