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 strie; lip somewhat thickened externally, thin and crenu- 
late at the margin, very faintly sinuated near the suture, with 
about ten short fine lire near the edge internally; yellowish 
white with chestnut stains, or entirely chestnut. 
Length, 12 mill. 
Japan. 
L. Turqueti, Velain. Pl. 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. Velain thinks it should rather be referred to 
the Pleurotomidee. 
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. 
Unfigured Species. 
L. GRANULATISSIMA, Morch. W. Coast Central America. 
L. cRATICULATA, Morch. Same Habitat. 
L. PERLATA, Morch. Same Habitat. 
L. surcata, Hutton. New Zealand. 
L. canpipissimA, C. B. Ad., West Indies, is referred here by H. 
and A. Adams, but is a Mangilia, probably. 
