226 LACHESIS. 



dentate within ; chocolate, with usually a narrow lighter or white 

 line at the suture. Length, 10 mill. 



St. Thomas, W. I. (Swift.) 



L. JAPONICA, A. Adams. PI. 34, fig. 78. 



Shell with about 20 arcuate longitudinal ribs crossed by rather 

 finer striae ; lip somewhat thickened externally, thin and crenu- 

 late at the margin, very faintly sinuated near the suture, with 

 about ten short fine Urge near the edge internally ; yell< wish 

 white with chestnut stains, or entirely chestnut. 



Length, 12 mill. 



Japan. 

 L. TURQUETI, Velain. PI. 30, fig. 95. 



Longitudinal ribs, rounded, rather coarse, crossed by revolving 

 grooves ; aperture narrow, canal very short and open, lip slightly 

 thickened, not crenulated within ; yellowish brown. 



Length, 4 mill. 



Isle of St. Paul. Indian Ocean. 



Velain calls attention to the resemblance of this shell to the 

 genus Etallonia, formed by Deshayes for eocene species of the 

 Paris basin. Deshayes considered Etallonia between Bulla and 

 Ringicula, but Mr. Yelain thinks it should rather be referred to 

 the Pleurotomidae. 



L. MERIDIONALIS, E. A. Smith. PL 32, fig. 26. 



Whitish, of six convex whorls, turreted ; with coarse longitu- 

 dinal ribs, and revolving grooves, the former obsolete on the 

 lower half of the body-whorl ; on the periphery, two stronger 

 grooves cut the ribs into a single series of tubercles ; two apical 

 whorls large and smooth. Length, 4'3 mill. 



Strait of Magellan. 

 Un figured Species. 



L. GRANULATISSIMA, Morch. W. Coast Central America. 



L. CRATICULATA, Morch. Same Habitat. 



L. PERLATA, Morch. Same Habitat. 



L. SULCATA, Hutton. New Zealand. 



L. CANDIDISSIMA, C. B. Ad., West Indies, is referred here by H. 

 and A. Adams, but is a Mangilia, probably. 



