APPENDIX. XXXI 



Obs. This singular Cowry, of which we have only 

 seen two specimens, neither of them in good condi- 

 tion, appears not to have been noticed by any au- 

 thor • it is principally distinguished by a deeply um- 

 bilicated spire, the upper part of the aperture being 

 produced and rather reflected, and by its acuminated 

 base : in general form it resembles a pear, and its 

 colour and markings are like those of some varieties 

 of C. Tigris. We are not acquainted with its native 

 country. The other specimen is in our own col- 

 lectidn. 



2261. CYPR^A MELANOSTOMA, Leathes MS. 



C. testA ovali, turgida, subfusca, transverse obsole- 

 tissime brunneo-fasciata, guttulis elevatiusculis, 

 niveis conspersa ; ventre €onvexius€ulo, extremi- 

 tatibusque albidis, lateribus dorsalibus subincras- 

 satis, utraque extremitate subfoveolatis ; dentibus 

 labii externi mediocribus, interni minoribus ; in- 

 terstitiis fusco-violascescentibus; long. 2^^ lat 1,%- 

 line. 



0{js. This Cowry, which we understand to have 

 been brought from the Red Sea, does not appear to 

 be uncommon ; we do not, however, find it described 

 either by Dillwyn, Lamarck, or Gray. It has been 

 mistaken for C. Vitellus, to which it approaches 

 nearly in general appearance. It has, nevertheless, 

 been long distinguished from that species, and may 

 be known by its want of the arenaceous transverse 

 lines so characteristic of C. Vitellus ; the teeth on 

 the inner lip are smaller than in that species, and 

 their interstices are of a brownish violet colour : the 

 teeth of the outer lip are larger than those of the 

 inner ; and the whole margin of the shell is whitish. 

 In its incomplete state it is destitute of the pearly 

 white specks on the back. 



