202 Mr. Cosmo AIelvill on the 



their value, and two might be obtained at the marts in 

 London for the price at which one inferior specimen could 

 be obtained in Fiji at the present time. 



Mr. Marrat considers this species is very near, if not 

 identical with, C. inappa. I can hardly agree with him. 

 The yellow teeth seem to me the only link of affinity, and 

 I am strongly of opinion that it has no congeners in the 

 genus. 



C. testudmaria (L.) is a very isolated shell. In length 

 about 5J^ inches, oblong, narrow, whitish brown, back 

 marked with burnt sienna — brown and black, like tortoise- 

 shell, besprinkled, in the adult, with indented white 

 punctures, teeth smallish, white. A common species from 

 the East Indies, but one of the handsomest of all. No 

 other species, excepting C. Bregeriana, has the peculiarity of 

 the small white specks, but some affinity in the cylindrical 

 shape with G. argus (L.) may be traced. 



C. zcvtbilicata (Sowerby). — The resemblance to C. pan- 

 tJierina^ of which it was thought once to be a monstrosity, 

 is entirely superficial. It is depressed in front, with 

 produced extremities, the spire deeply umbilicated, teeth 

 brownish, markings pale fawn-coloured brown. Length, 

 nearly four inches. A species, formerly very rare, dredged 

 abundantly and without any variation, except an occasional 

 white variety, in Australia, (var. alba of Cox). 



C. lynx (L.). — It may surprise some conchologists to 

 find this spoken of as an .isolated species, but in attempting 

 an arrangement of exact affinities I have had much difficulty. 

 The nearest relation it possesses is undoubtedly C. IValkeri, 

 with which it agrees in form, and coloration of the teeth 

 interstices. It is variable, but always known by its oblong 

 shape, clouded bluish and brown markings, with occasionally 

 a dash of red, base and teeth white, base often with peculiar 

 longitudinal sharply cut angled depression, which is very 

 characteristic, interstices between the teeth invariably 



