AVPEXDIX. XXXI 



Ohs. This sinq:ular Cowry, of which wc have only 

 seen two spcrinicns, ncitlicr of them in good condi- 

 tion, appears not to have heen noticed hy any au- 

 thor ; it is principally distini::uislicd hy a deeply um- 

 bilicatcd spire, the up]ier part of the aperture being 

 produced and rather rcHected, 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. Wc are not acquainted with its native 

 country, llie other specimen is in our own col- 

 lection. 



2261. CYPR.T:A MELANOSTOMA, Leathes MS. 



C. testft ovali, turgid;\, subfuscu, transverse o1)sole- 

 tissimc brunneo-fasciatfl, guttulis elevatiusculis, 

 niveis conspersa ; ventre convexius<'iilo, extremi- 

 tatibusque albidis, latcrihus dorsalihiis snbincras- 

 satis, utra(jue cxtrcmitate suhfoveolatis ; dentibus 

 lubii externi mediocribns, interni minoribus ; in- 

 tcrstitiis fusco-violascescentibus; long. 2,\y lat 1 ^^. 

 line. 



Obs. This Cowry, which we understand to have 

 been brouglit from the Red Sea, does not appear to 

 be uncommon ; we do not, liowc\'cr, find it described 

 either by Dillwyn, Lamarck, or (iray. 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 (J. \'itclliis ; the teeth on 

 the inner lip are smaller than in that species, and 

 their interstices are of a hrownisli vicdet 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 ou the back. 



