3IO Quarterly Journal of Conchology. 



region, though it must be confessed that there does not seem to be 

 in the mollusca that sharp distinction between the PhiHppines, 

 Borneo, and Sumatra-Bali on the one side, and Celebes and the 

 Moluccas, and Lombock-Timor on the other, that has been 

 observed in other departments of Zoology. The leading Molluscan 

 features of the Australasian Province do not appear, as we shall see, 

 till much further to the East, whilst Xesta, Hemiplccta^ Amphi- 

 droiiius, and other Indo-Malayan groups are found in Lombock, 

 Timor, Celebes and the Moluccas. This cham of islands is nut 

 so rich as might be expected. The land shells of the comparatively 

 small island ot N. Caledonia are far more numerous than those of 

 all this group. The fauna of Java was described many years ago 

 by Mousson, the most recent account of the land shells of these 

 islands is in Martens' work above referred to. Large Nanina are 

 numerous, generally of obscure colors. Of Helices there are few, 

 5 are referred to Fruticicola, 6 to Fledotropis, and only i to 

 Geotrochus. Ainphidroiniis has 8 species, Cochlostyla i. There is 

 also I Buliminus. Stehogyra is represented by 6 and Claiisilia by 

 no less than 9 species. The operculate genera are Cyclotus i, 

 Pterocyclos i. Alycceus 3, Cyclopliorns 8, Opisthopoina 3, Leptopoma 

 5, Pupina 2, Helidna 2. 



V. Australasian Province. It is rather in accordance 

 with the views of Lyell and Wallace than with our own convictions 

 to make this Province begin here; we would have preferred to 

 include the islands from Lombock to Timor, Celebes, the 

 Moluccas, and New Guinea in the Palgeotropical Province as the 

 leading peculiarities of the Province are not found to any extent 

 till we get to the eastward of those islands. We also consider it 

 doubtful how far Australia, New Zealand, and the Polynesian 

 Islands can be considered to belong to the same Province. We 

 divide the Province into 5 great Regions, viz. : — • 



1. The Moluccan. 



2. The West Polynesian. 



