248 MANGILIA. 



tudinal ribs and impressed revolving striae ; whitish, with three 

 narrow brown bands, one of which appears on the spire-whorls. 



Length, 6 mill. 



West Indies. 



Described and figured by Reeve as M. trifasciata, Gray, a few 

 months later than Adams' description. M. costata, Gray (PL 18, 

 fig. 36), is the same species without bands, as first determined 

 by Krebs. The latter name being preoccupied by Pennant, Mr. 

 E. A. Smith has recently changed it to decora. Krebs thinks 

 that M. quadrilineata, Adams (unfigured), also belongs here. 



M. ALBOVITTATA, C. B. Ad. PI. 21, fig. 32. 



Ovately oblong, whorls with narrow shoulder ; longitudinally 

 strongly ribbed, ribs close-set, obtuse ; white, orange banded. 



Length, 6 mill. 



West Indies. 



Described and figured by Reeve a few months later, under the 

 name of M. luteo-fasciata, and without locality. Adams includes 

 revolving striae in his diagnosis ; they are not visible on the 

 figure. Hutton erroneously identified with this species a New 

 Zealand shell, afterwards distinguished as Drillia Sinclairi, 

 Smith. 



M. HORNBECKII, Reeve. PL 26, fig. 67. 



Shell ovate, spire rather short, acute, sutures deep, somewhat 

 cavernous, longitudinally ribbed, ribs prominent, transversely 

 very minutely striated ; white. Length, 10 mill. 



West Indies. 



The following species, apparently of Mangilia (restricted), 

 have been described as West Indian, etc. ; they are unfigured 

 and unknown to me. 



M. brevis, M. biconica, M. mcina, M. multilineata (= M. poly- 

 zonata, H. and A. Ad.), M. muricoides, M. dubia, M.fusca, 

 and M. candidissima, all of C. B. Adams. Jamaica. 



M. cinctella, Pfeiffer. Cuba. 



M. millestriata, E. A. Smith. St. Thomas, W. I. 



M. inepta, E. A. Smith. Honduras. 







