Il6 GARRETT: CATALOGUE OF CYPR^JD^, 



36. C. microdon, Gray. Not uncommon beneath dead coral 



on the inner margins of reefs; more rare at the A'^iti and 

 Tonga Islands. 



37. C. (Aricia) obvelata, Lam. According to our observations 

 this common species is confined to South-Eastern Polynesia. 

 The Society Islands, where they occur in the greatest pro- 

 fusion, may be considered the metropolis or specific centre of 

 the species. M. Crosse, in his 'List of the New Caledonian 

 Cyprasse,' recoMs it from that Island. Not having discovered 

 it in any part of Western Polynesia, I am inclined to believe 

 the New Caledonian specimens were imported from Tahiti. 

 Dr. Gould, in his 'U.S. Expedition Shells,' erroneously quotes 

 it from Samoa. It has also been recorded from Australia 

 and the Sandwich Islands, where it does not occur. 



Middle aged shells can scarcely be distinguished from 

 C. amiidus, except in being a little darker colored. They all 

 show a single faint transverse band. 



Like C. inoneta^ they delight in sandy-mud flats, and are 

 frequently found under coral on the inner margins of reefs. 



38. C. (Luponia) poraria, L. We obtained a few examples 

 of this species at all the groups except the Marquesas. 

 Living specimens were found lurking beneath dead coral on 

 the outer reefs. 



Young shells are uniform bluish-violet, with a brown apex. 



The animal is vermilion-red, with a greenish-gray mantle, 

 which latter is garnished with small, crowded, tentacular ap- 

 pendages, varied with white and green. Siphon fringed. 

 Upper surface of the foot dotted with greenish-gray. 



39. C. (Luponia) propinqua, Garr. 



After a long hesitation, I have ventured to separate and 

 record this not uncommon shell as distinct from C cameo/a, 

 with which, as near as I can ascertain, it has hitherto been 

 confounded. 



J .c, li., Apvii, isr-g 



