Quarterly Journal of Conchology. 297 



III. The Ethiopian Province. — We include in this 

 Province all Africa to the south of the" Sahara, and the southern 

 part of Arabia. At two points only are its boundaries ill defined, 

 along the course of the Nile (Abyssinia even has certain shells of a 

 Paliearctic facies, and we do not know where the purely Mediter- 

 ranean fauna begins in Nubia), and similarly on the narrow zone 

 of comparatively fertile land on the Atlantic side, though the fauna 

 of Senegambia is purely Ethiopian and that of Morocco Mediter- 

 ranean^ the point of contact between the tw^o is undetermined. 

 Elsewhere the Sahara forms an impassable barrier. We come 

 here upon a perfectly distinct fauna fiom those we have hitherto 

 met with ; its principal features are the abundance of AchatiiKZ 

 and allied genera — Feriuens, Li/nicolaria, etc., and of £nnecc, 

 together with, on the whole, a comparative scarcity of He/ices, 

 those that are found being of diffeient subgenera from the Helices 

 of the Patearctic Province. Pupa is rather poorly represented. 

 Clausula exists only in Abyssinia. Cionella has completely dis- 

 appeared. On the other hand, Nanlna and Streptaxis appear for 

 the first time. 



The division of this Province must as yet be imperfect, the 

 interior being insufficiently explored. \A e may, however, lecog- 

 nise the following regions : — 



7. THE WEST AFRICAN. 



2. THE SOUTH AFRICAN. 



3. THE EAST AFRICAN. 



4. MADAGASCAR. 



5. THE MASCARENES AND SEYCHELLES. 



6. ABYSSINIA, 



1. THE WEST AFRICAN REGION. This region, extending from 

 Senegambia to about the southern tropic, can hardly be sub- 

 divided. Our knowledge of it is chiefly derived from Morelet's 

 works, especially as to the southern part, and we would recom- 



