172 SPECIFIC 



figured in Plate XXVII. and the last in Plate 

 XXVIII., are all in the possession of Mrs. Mawe. 

 They are certainly rare, and some of them are 

 supposed unique : if either of them have been 

 previously named or figured by any other writer, 

 it is not within the knowledge of the author, who 

 is far from wishing to lay claim to originality not 

 his own, or to impose his names in preference to 

 such as have been already confened. In selecting 

 the names he has endeavoured to find those which 

 shall express some remarkable character of the 

 species, and which may in some degree distinguish 

 them from others by the meaning they convey, and 

 not merely by their verbal sound. 



Fig. 2. BucciNUM Pseudodoii. 



Shell oblong, solid, transversely striate ; whorls 

 obtusely carinate, surrounded with transverse raised 

 bands; aperture crenate, columella with two plaits. 



Nondescript. 



Specimen white, covered with a transparent 

 brown epidermis ; raised bands dark brown ; aper- 

 ture white, ovate ; a few elevated striae above the 

 plaits on the columella, which is rather impressed 



