BUCCINID^. 149 



COMINELLA, Gra}'. 



Dist7\ — 20 sp. Cape, N. Zealand, Australia. G. limbosa, 

 Lam., var. (1, 34). 



Shell bucciniform, marked or spotted, covered with an epi- 

 dermis ; spire short, acute, last whorl large, ventricose, with a 

 posterior depressed groove at the suture, producing a contraction 

 at the hind-part of the outer lip. Operculum with apical nucleus. 



H. and A. Adams ( Genera, ii, 615) make Adamsia, Dunker, a 

 subgenus of Cominella ; the operculum and facies of the type 

 show it, however, to = Urosalpinx. 



JOSEPHA, Tenison-Woods. Founded upon the C. Tasmanica, 

 which differs from Cominella in possessing a plait upon the 

 columella. 



CtEA, A. Adams. 



Distr. — 11 sp. Fresh water. Borneo, Java, Siam, Cambodia. 

 G. nigricans, A. Ad. (1, 35). 



Shell turbinate, covered by an epidermis, aperture ovately 

 acute, truncate at base and profoundly sinuate, dextral margin 

 regularly arcuate, parietal callus none or thin. Operculum sub- 

 trigonal, with apical nucleus. 



First proposed as a genus of the family Melanidse, which the 

 shell resembles in its form, epidermis and habitat in fresh waters, 

 especiall}^ reminding one of the genus Hemisinus, The oper- 

 culum with its apical nucleus, no less than the lingual dentition, 

 whereof the formula is 1"1*1 in Clea, instead of 3*1*3 as in Melania, 

 induced Brot to remove the species to Buccinidae ; and the form 

 and sculpture of the shell do not contravene such a disposition 

 of Clea, its fluviatile distribution being really the strongest 

 argument for considering it a Melania. 



CANiDEA, H. Adams. Shell small, fusiform or turbinate, covered 

 with an epidermis ; spire longer than the aperture, apex eroded ; 

 whorls slightly convex, plicate ; aperture elongately ovate, emar- 

 ginated in front ; columella truncate ; lip simple, sinuated in 

 front. Operculum small, unguiculate ; nucleus apical. Living 

 in fresh water. C. Helena, Meder (1, 36). G. Gambodiensis, 

 Rve. (1, 37). 



Eripachya, Gabb. 



Distr. — U. perforata, Cabb (li, 66). Cretaceous ; California. 



Shell short, robust, subovate to subfusiform, spire moderately 

 elevated. Aperture broad, terminating in advance in a very short 

 canal or a mere notch ; outer lip simple ; inner lip more or less 

 heavily incrusted. Surface marked by longitudinal ribs and 

 revolving lines. 



rsEUDOBUCCiNUM, Meek and Hayden. 



Distr. — P. Nehrascense, M. and H. (li, 67). Cretaceous ; 

 Moreau K. 



