Garrett: catalogue of cyprmibm. 123 



ance at all the groups, except the Marquesas. In Eastern 

 Polynesia they seem to live in deep water outside the reefs ; 

 but at Samoa and the Viti Islands we obtained a few living 

 examples beneath dead coral on the outer reefs. 



They are usually smooth, but some exhibit a more or 

 less granulate surface. A variety occurs in South-west 

 Polynesia, which is smaller, less globose, darker colored and 

 quite destitute of the four basal spots. 



65. T. exigua, Gray. Rather rare; under dead coral on the 



outer reefs, and found at all the groups except the Marquesas 

 and Caroline Islands. 



66. T. (Epona) globulus, L. Excepting the Marquesas, we 



obtained a few examples at all the groups. It is probably a 

 denizen of deep water outside the reefs. The more or less 

 perfect empty shells are washed up on the reefs and beaches. 



South Sea specimens are much smaller, smoother, and 

 lighter colored than East Indian examples. Dillwyn, under 

 the name of Cypr(^a margarita, gives a good description of 

 the Polynesian variety, some of which are perfectly smooth, 

 pure white, and, as he remarks, "strikingly beaked at both 

 ends." 



67. T. insecta, Mighels. Obtained sparingly, washed up on 



sandy beaches at all the Eastern groups except the Marquesas. 

 In Western Polynesia it occurred to our notice only at the 

 Caroline Islands. 



62. T. (Pustularia) Simacina, Lam. We obtained fine living 

 examples from beneath blocks of coral on the inner reefs at 

 Samoa and the Viti Islands; also a few beach specimens at 

 the Sandwich Group. 



It is, by some authors, quoted as a variety of T. staphy- 

 Icea ; but is certainly sufficiently distinct to rank as a separate 

 species. As compared with the latter it is larger, lighter 



