CANTHARUS. . 153 



M. CuMiNGii, A. Adams. Fl. 72, lig. 241. 



Yellowish l)iovvii, tin<>i'(l with chestiiuL. The cjincoUation in 

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

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



West Coast of Africa. 



M. HiNDSii, H. and A. Adams. PI. 72, fig. 240. 



White, with fonr revolving series of brownish maculations. 

 Length, 17 mill. 



West (Jodsl of Vcr(((jii(i ; in mud, at a lew lathoius' depth. 



Doablfal S'pecies. 



M. BELLA, C. B. Ad. 



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

 three series, one aboA'e and two next below the middle of the 

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

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

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

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



A single specimen only obtained. This was snbsequently 

 examined by P. P. Carpenter and said by him to reseml)le a 

 young MetuJa: I am inclined to think it more likely a Golumbella. 

 In his Mazatlan Catalogue", Carpenter enumerates four doubtful 

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

 probable that they belong to the genus. 



(Jemis CANTHARUS, Bui ten. 



Swainson described a group Trifonidea which Messrs. H. and 

 A. Adams make a subgenus under Canthariis, distinguishing it 

 from the typical foi'm by ''Shell tnrreted ; canal lengthened." 

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

 species varies considerably from the typical species of Gantharus 

 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. 



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