IXXX GEOGRAPHICAL DISTRIBUTION. 



and Annobon : — Fernando Po, Eidolon helvum, Hypsignathns mon- 

 strostis, Scotom/cteris zenlceri : Principe, Eidolon helvum : San Thome, 

 Eidolon helvum, Myoni/cteris hrachycephcda : Annobon, Eidolon 

 helvum. Myonycteris brachycejdiala is known only from San 

 Thome, and the sole representative of the subgenus Phyyeiis ; all 

 the other three species are common to the islands and the adjacent 

 coasts of the continent. 



East African province. — 3 genera {Eidolon, Rousettus, Epomo- 

 pJiorus), 10 species. This province is incomparabl)' poorer than 

 W. Africa, both in genera and species and in the number of really 

 peculiar forms. None of the genera is autochthonous. Eidolon 

 helvum, Rousettus ^gyptiacus, and Epomophorus gambianus are 

 common to this and the foregoing province ; the other seven forms 

 (two Rousettus, five Ejjomojihorus) are entirely East African. 



Rousettus leaclii ranges from the Cape Colony north to British 

 East Africa, and is in Egypt and part of West Africa replaced by 

 R. cegyptiacus ; Epomophorus wahlbergi ivahlbergi likewise from the 

 Cape Colony to British East Africa, and is replaced in West Africa 

 by E. IV. haldemani ; Epomophorus crypturus extends from Trans- 

 vaal to Nyasaland, and is replaced northward, from Tanganyika to 

 Erythrea, by E. anurus. It will be noticed that the southern forms 

 have as a rule an unbroken distribution from the Cape Colony or 

 Transvaal north to British East Africa or at least to Nyasaland. 



South Arabia. — 2 genera, 2 species. Affinities decidedly African, 

 J^i(fo?o)isa^f»!M/rt (autochthonous) being closely related to the widely- 

 distributed African E. helvum, Rousettus arabicus to the East 

 African R. leachi. R. arabicus extends as far east as Karachi, 

 N.W. India. 



Pemba Island. — Pi.emarkable by being inhabited by a distinct 

 species of Pt/ropms, although the genus is absent from the whole 

 continent of Africa. The Pemba species {Pt. voeltzkowi) is closely 

 related to a Malagasy form (Pt. comorensis). 



Malagasy Region. 



2 genera, 9 species (10 forms: Eidolon one, Pterojnts nine); 

 neither of the genera is confined to this region, but all the species 

 are peculiar. The single species of Eidolon (E. dupreanum, closely 

 related to the Ethiopian E. helvum) is apparently restricted to 

 the island of Madagascar, while Pterop)us is distributed over the 

 whole of the Malagasy region. The affinities of the Malagasy 

 Pteropus fauna have been discussed elsewhere (pp. 79-80). 



Indian and Ceylonese subregions. 



3 genera, 7 species (8 forms), viz. Rousettus (three species), 

 Pteropus (two species), Cynoptcrus (two species, three forms). 

 Rousettus arabicus is a South Arabian species which only enters the 



