144 ATIL1A. 



tudinal plications, the lower part of the body-whorl with revolving 

 striae ; whitish, marbled with yellowish brown. Length, 10 mill. 



Port Lloyd, Bonin Islands (Stirapson). 



I give a figure from a specimen in the Philadelphia collection, 

 received from Stimpson. 



C. PLUTONIDA, Duclos. PL 52, fig. 75. 



Shell whitish, with obscure chestnut or slate colored reticula- 

 tions. Length, 7 mill. 



Habitat unknown-. 



Figured by Duclos, with name, but no description. 



C. PRETRII, Duclos. PI. 52, fig. 76. 



Whorls flattened, with deeply impressed sutures, longitudi- 

 nally plicate ; white, broadly banded with chestnut, lower part 



of body-whorl chestnut. Length, 7*5 mill. 



Habitat unknown. 

 Figured, but not described by Duclos. 



C. IONTHA, Ravenel. 



Shell fusiform, strong, small, with nine flat, longitudinally 

 ribbed whorls, and deeply channeled sutures ; lower part of 

 body-whorl with revolving strise, which upon the ribs give place 

 to revolving colored lines and clouds ; outer lip considerably 

 enlarged, sparsely denticulated within ; aperture small, rather 

 wide, the pillar lip much hollowed above, suddenly becoming- 

 straight to form the canal. Length, 6+ mill. 



Charleston Bar, So. Carolina. 



A single specimen from the stomach of a black-fish. Is very 

 probably synonymous with C. Hotessieri, d'Orb., and C. Pretrii, 

 Duclos. In the event of their proving identical, the latter name 

 must be adopted, having priority of publication. 



C. HOTESSIERI, d'Orb. PI. 52, fig. 82. 



Shell oblong, thick, with wide longitudinal plications and 

 revolving strise; spire sharp, composed of seven, flat whorls, 

 separated by a crenulated suture ; mouth narrow, sinuous, the 

 thickened lip six-tuberculate, the columella slightly folded ; 

 yellowish white, more or less marked with chestnut. 



Length, 7 mill. 



Guadeloupe, West Indies. 

 See remarks under preceding species. 



