278 OLATHURELLA. 



C. CANDIDULA, Reeve. PI. 18, figs. 24, 23, 25. 



Longitudinally plicate, revolving ridges rather distant, con- 

 spicuous ; pale straw-color, lip tinged with pink. 



West Indies. 



The figure is said to be highly magnified, but the dimensions 

 are not given. 



Yar. D'ORBIGNYI, Reeve (fig. 23). Longitudinal plications 



obsolete. 

 Yar. CLATHRATA, Reeve (fig. 25). Light brown, variegated with 



reddish chestnut. 



C. QUADRATA, ReCVC. PL 18, fig. 31. 



Strongly biangulated on the body-whorl ; ribs distant, con- 

 spicuous, revolving sculpture fine and close ; whitish or yel- 

 lowish ; the interstices of the ribs often chestnut-color. 



Length, 5*5 mill. 



West Indies. 



Described by Reeve without localit^y. His figure is three 

 times the size given above, but there are good reasons for sup- 

 posing it to be magnified ; among them, is the fact that Prof. C. 



B. Adams obtained a shell in Jamaica which, except for its 

 diminutive size, exactly corresponds with Reeve's figure. He 

 proposed to call his species M. diminuta, in case it should prove 

 distinct. My specimens confirm his suspicion and Krebs' con- 

 viction that the two species are identical. 



C. ANGULIFERA, Reeve. PL 18, fig. 22. 



Bodj'-whorl biangulated, the upper and lower parts chestnut, 

 the middle yellowish. 



West Indies. 

 Dimensions not given, but greatly magnified in the figure. 



C. MONILIFERA, Sowb. PL 14, fig. 9 ; PL 18, fig. 43. 



Shell minutely reticulated ; white, tessellately painted with 

 squares, each composed of four short parallel brown lines. 



Length, 5 mill. 



West Indies. 



Described as a Columbella, and included in that genus in the 

 " Manual," v, p. 149 ; the figure, however, shows the Pleurotomid 

 notch. P. scalpta, Reeve (PL 18, fig. 43), and P. fuscolineata, 

 C. B. Ad., are synonyms. 



