MITRELLA. 119 



brown flames and opaque white ; spire sharp ; whorls seven, flatly 



convex; aperture small, lip thickened, denticulated within. 



Length, 19 mill. 



California (Mus. Camiug). 



This locality has not been verified by Californian collectors, 



and I do not know that the species has been recognized by con- 



chologists generally : I am unacquainted with it. C. vexillum, 



Reeve (fig. 54), appears to be a state of this species in which 



the flames are replaced by irregular longitudinal strigations ; it 



is said to come from the Gulf of California, and is equally 



unknown to me. 



C. LiGULA, Duelos. PL 41, fig. 55. 



Shell oblong, acuminated, smooth ; whitish, yellowish, stone- 

 color, etc., with three marbled or closely reticulated bands of 

 chestnut or slate-color, sometimes interspersed with white spots, 

 sometimes the bands are confluent, covering the whole surface 

 or nearly all; aperture white, the outer lip plicate within, slightly 

 notched and sliouldered i)Osteriorly. Length, '8-1 inch. 



Philippines, Solomon's and Viti Islands. 



One of the most beautiful of the species and varying infinitely 

 in the shades and dispositiou of the colors. 



C. Indica, Reeve. PL 47. fig. 5(;. 



Shell with revolving grooves ; white, with two series of revolving- 

 oblique chocolate spots ; lip thickened, denticulated within. 



Lengtli, 11 mill. 



India (Cuming) . 

 C. iMPOLiTA, Sowb. PL 47, figs. 57, 58. 



Shell elongately turreted, spire plicatel}^ ribbed towards the 

 apex ; whorls flatly convex, fulvous chestnut, encircled above 

 with a wiiite band ; aperture small, denticulated within. 



Habitat unknown- 

 Tins species was described from a single worn specimen in the 

 Cumingian collection. From this specimen, presumably, the two 

 very ditferent illustratious in Sowerby (fig. 57) and Reeve (fig. 

 58) were drawn. Sowerby figures and describes a shell with 

 smooth spire-whorls. 



C. viTTATA, Reeve. PL 47, fig. 59. 



Shell acicular, fulvous, encircled with a single, superior, broad 



