302 Quayierly Journal of Conchohgy. 



6. ABYSSINIA is comparatively badly explored, but Blanford, 

 Issel, and Jickeli have made us acquainted with some portions. 

 Issel's discoveries have been published by Morclet. Jickeli has 

 given us a work on the fauna of N. E. Africa. As already 

 stated, the fauna has evidently received some additions from the 

 Palcearctic Province ; this will be seen by the following list, where 

 the Patearctic genera, etc., are in italics : Vitrina 20, Succmea 2, 

 Acanthinula i, Hemiplecta 2, Hyalina 2, Pella i, Euparypha i, 

 Pat Ilia ^, Monacha i, Buhminus 5, CyHndnis i, Stenogyra 8? 

 Limicolaria 9, Achatina i, Homorus 2, Pupa 14, Clausilia 2. The 

 presence of a species of Pella. of which all the others are from 

 the Cape, is remarkable, as is also the total absence of the oper- 

 culate shells, 



IV. The Palseotropical Province. We include in this 

 Province, India, Ceylon, the Transgangetic Peninsula, the Anda- 

 mans and Nicobars, China with Formosa, Japan and the Loochoo 

 Islands, the Philippines, Borneo, Sumatra, Java and the other 

 East Indian Islands, to and inclusive of Bali. To the west, the 

 boundary between it and the eastern portion of the Mediter- 

 ranean Region is undetermined, and to the north there is probably 

 no certain limit. Amooria is almost completely Palcearctic, whilst 

 South China is as clearly Palieotropical. In Japan, even, there is 

 a certain mixture of northern forms. This Province is one of the 

 richest, or perhaps the richest of all, both in genera and species. 

 The faunce of the separate regions differ a good deal, but the 

 following may be taken as general characteristics: Vitrhuv are 

 abundant, especially those now referred to Helicarion. Nanina is 

 most richly represented, and by many magnificent species. 

 Trochomorpha is found almost everywhere. The Amphidromi 

 occur almost throughout the region. The operculate shells attain 

 a development unparalleled elsewhere in the Old World, though 

 strange to say true Cydostomi scarcely exist, but Cyclophorus and 

 Cyclotus, with their allies are most abundant, and we now come 



