Quarterly Journal of Conchology. 311 



3. The East Polynesian. 



4. The Sandwich Islands. 



5. The Australian. 



I. The Moluccan Region includes those groups of which we 

 have aheady spoken as more PalKotropical than Australasian. 

 Large Nanina, generally of brighter colors than those of Java 

 and Sumatra, abound, whiht the small species so characteristic of 

 Polynesia are comparatively few. I'he Malayan subgenera of 

 Helix^ Planispira Chloritis, Corasla, etc., are numerously repre- 

 sented, AmphLi'oniu<i has been found everywhere exce[it in New 

 Guinea. Partula has only i species, and that in New Guinea. 

 Several genera of operculates continue that are altogether lost in 

 Polynesia. Leptopoma and Pupina are abundant. Placostylus, 

 that distinctive genus of West Polynesia, has not a single species. 

 The examination of the separate groups will show this more 

 distinctly. 



A. Lombock to Timor. The following are the land shells :^ 

 Nanina s.g. Hemipleda 3, Xesta 2 ; Trochojnorpha i ; Helix s.g. 

 Pledotropis i, Dorca ia i, Fjuticicola i, 'Rhagada \, Planispira i \ 

 Aniphidromus 5, Bulimimis 3, Cy dolus i, Leptopoma i, Helicina 

 2. It will thus be seen that except by the deficiency of some 

 genera, naturally to be expected in small islands, this is almost 

 identical in genera with the fauna of Sumatra-Bali. 



B. Celebes. This island has not been fully explored, the 

 northern and southern extremities are better known than the 

 intermediate portions. Pfeiffer records Nanina (Xesta 6, Hemi- 

 pleda 3, Maaochlamys i, Medyla i, doubtful i), Trodiomorpha i. 

 Helix (Obba 4, Chloritis 3, Planispira i, Frutidcola ij, 

 Amphidromus i, Buliminus i, Cy dolus 3, Alycueus i, Cydophonis 

 I, Leptopoma 3, Pupinella i, Pupina i, Realia i, Helidna i. We 

 see the the nearer relation to the Philippine and Bornean fauna in 

 the greater number and variety of the operculate shells. 



