1879.] NATURAL SCIENCES OF PHILADELPHIA. 27 



and they are common to all the islands. Of these, .striata, as far 

 as known, has not been discovered elsewhere ; while of the remain- 

 ing four species, luteins and fasciatus are very widely diffused 

 through Polynesia, Melanesia, and the Indian Seas. M. Philippi 

 seems to be confined to southeastern Polynesia. All the above- 

 mentioned four species are correctly determined. We now have 

 only the species under consideration to identify. 



In 1871, Mr. Pease published in the French Journal of Con- 

 chology a list of Anaa (Paumotus Isl.) land shells, collected by 

 me in 1865, and recorded this species as caffer, Kiist. Adopting 

 his view I distributed the shells to my correspondents, under that 

 name. 



The same year he published his list of Polynesian land shells 

 in the Proceedings of the Zoological Society, and excluded caffer, 

 but recorded violus from Borabora. 



Dr. Pfeiffer's cafe?; var. 8, which Mr. Cuming collected at Ru- 

 rutu, is undoubtedly the same as our shell. 



It is a very common species, and is confined to the Paumotus, 

 Society, and the Austral Islands. Its limited range also proves 

 its distinctness from coffer, which is recorded as a south African 

 and Philippine species. 



In shape, it resembles fasciata, and the last whorl is sub-angu-. 

 late above. The spire is convexly conoid, mucronate, and nearly 

 one-third the length of the shell ; the upper whorls usually have 

 a few faint radiating incised lines. The well-impressed suture is 

 more or less lacerated by large wrinkles of growth on the last 

 whorl. The base is sub-rim ate, and sometimes decussated with a 

 few faintly-defined impressed stria?. Parietal region with two, 

 sometimes three plicae on the basal half, and the brownish-violet 

 columella has a rather small oblique fold. The inner margin of 

 the peristome is always deep chestnut-brown, approaching black, 

 and the palate has 4-6 bluish-white plica?. 



Living shells are uniform fuscous ; frequently the belly or front 

 of the last whorl is brownish-yellow, with a transverse fuscous 

 band just beneath the middle. Sometimes, though more frequently 

 in immature examples, the ground-color is brownish-yellow, with 

 the spire and upper portion of the last whorl, together with a 

 sub-basal band, fuscous. 



Length 12, major diameter 7 mill. 



