312 Quarterly lournal of Conchotogy. 



C. Moluccas. We ha\-e here a somewhat different fauna. Its 

 great pecuUarity is the abundance of the s.g. Planispira (no less 

 than 29 species). Chloritis is also numerous (13 species), and 

 Phania (3 species) is peculiar. There are two species of the 

 Philippine genus Cochlostyla, and we find here the last species of 

 Clausilia that we shall meet with in the Old World, one proof the 

 more of the Palseotropical affinities of the fauna. The other groups 

 are much the same as in Celebes. 



D. Neu) Guinea, including the Aroo Islands, Louisiade, &c. We 

 here, for the first time, meet wdth an indication of Polynesian 

 affinities in the presence of a single species of Partida and in the 

 abundance of Geotrochus (19 species). A Pedinogyra indicates 

 the proximity to Australia. A Merope is peculiar. The only 

 operculates are Cyclotus 2, Leptopoma 5, Pupinella 4, Helicina 7. 

 It must however be added that our knowledge of the zoology of 

 New Guinea is very scanty, and that of the easiern part almost 

 nil; and, judging from the ill success of recent attempts at settle- 

 ment, we shall probably have to wait some time for a complete 

 investigation of the island. Whether the result will be as dis- 

 appointing as in Java and Sumatra, or whether New Guinea will 

 be found to share in the conchological riches of the Solomon 

 Islands remains to be seen. 



2. The West Polynesian Region. We maki this Region con- 

 terminous with the distribution of Placostylm. It consists of the 

 Solomon Islands, New Caledonia, the Fijis, and the New Hebrides; 

 the last named islands forming a transition to the East Polynesian 

 Region. 



A. the Solomon Islands. These are exceedingly rich; especially 

 in the s.g. Geotrochus, of which there are 55 species of great beauty. 

 The Pldcostyla are of more aberrant sections, 13 species. Partula, 

 a genus special to the Polynesian Islands has 11 species. Trocho- 

 morpha also is now richly represented (15). Some of the Malaisian 



