3 22 MITRELLA. 



C. CRIBRARIA, Lam. PI. 48, figs. 73-77. 



Shell oblong-pyramidal, the apex usually truncated ; reticulated 

 with chestnut or chocolate and white, sometimes obscurely light- 

 banded below the periphery ; usually, the chocolate color predomi- 

 nates, so that the white appears upon it as a series of regularly 

 disposed round white spots ; interior of aperture white, in adults, 

 the outer lip dentate within. Length, '7 inch. 



West Indies, Mazatlan to Cape St. Lucas, Panama, 



Galapagos, Goree, West Africa, Ascension Isl. 



There can be no doubt of the large distribution of this species 

 indicated by the above localities. The Seas of Java and Philip- 

 pines have been also cited, but not with the same certainty as 

 the others. The species appears to be equally common in the 

 West Indies and in the subtropical waters of the West Coast of 

 N. America. Gmelin's name, Valuta ocellata, has priority, but 

 the species is so well known as C. cribraria that it would be 

 inadvisable to change it. 



C. ar<7M,s*,d'Orb (fig. 76), appears to be the juvenile state. Buc. 

 parvulum, Bunker (fig. 77), is a synonym. 



C. DELICATA, Reeve. PL 48, fig. 78. 



Shell smooth and shining; yellowish white with a delicate close 

 network of orange-red lines ; lip slightty sinuated above, denticu- 

 lated within. Length, 13 mill. 



Guatemala. 



Is perhaps only a variety of C. cribraria. 



C. CERVINETTA, Carpenter. 



The typical form was described from M single specimen -27 

 inch long, the var. obsoleta from a juvenile and adult, the latter 

 of which is '19 inch long. The pattern of coloring is said to be 

 like C. cribraria, but the spire is supposed to present distinctive 

 features. 



Mazatlan. 



Not figured. 



C. DALLI, E. A. Smith. 



Shell fusiformly ovate, yellowish white, reticulaU'd with pnlc 

 brown, the interstices being of irregular shapes and sizes or in 

 other words, it is pale brown, closely spotted irregularly with 

 yellowish white; epidermis very thin; apex eroded, remaining 



