CANTHARUS. 153 



M. CUMINGII, A. Adams. PI. 72, fig. 241. 



Yellowish brown, tinged with chestnut. The cancellation in 

 the specimen described, which appears to be an old one, is con- 

 lined to the upper part of the spire. Length, 37 mill. 



West Coast of Africa. 



M. HINDSII, II. and A. Adams. PI. 72, fig. 240. 



White, with four revolving series of brownish maculations. 

 Length, 17 mill. 



West Coast of Veragua ; in mud, at a few fathoms' depth. 



DoMful Species. 



M. BELLA, C. B. Ad. 



AVhite, with reddish brown spots in spiral series, mostly in 

 three series, one above and two next below the middle of the 

 whorls ; with ten rather narrow prominent ribs, and spiral raised 

 lines, nodulous at their intersection. Rather elongate, with seven 

 very convex whorls, a long ovate aperture, and a wide, mode- 

 rately lengthened canal. Length *44 inch, diameter *21 inch. 



A single specimen only obtained. This was subsequently 

 examined by P. P. Carpenter and said by him to resemble a 

 young Metula: I am inclined to think it more likely a Columbella. 

 In his Mazatlan Catalogue, Carpenter enumerates four doubtful 

 Metuhe, to which he does not give specific names. It is not at all 

 probable that they belong to the genus. 



Genus CANTHARUS, Bolten. 



Swainson described a group Tritonidea which Messrs. H. and 

 A. Adams make a subgenus under Cantharus, distinguishing it 

 from the typical form by u Shell turreted ; canal lengthened." 

 The distinction is altogether arbitrary, as the spire in the different 

 species varies considerably from the typical spefcies of Cantharus 

 to much higher, but with no considerable break in the series, 

 whilst .the canal can scarcely be called " lengthened " in any of 

 them. I have suppressed the subgenus as superfluous and con- 

 fusing. 



20 



