GEOGEAPHICAL DISTEIBUTION. xxi 



A"*. Mediteera>ceo-Asiatic Sub-R,egiox. 



a. Mediterranean P root nee. 



Peculiar Genera : — 0. 



Peculiar Species: — 1. Hirundo sav/gnii. 



Species Trliich breed within its limits : — 1. CheUdon urbica. 2. CotUe ripuna. 3. Biblis rupL'stris. 

 4. Hirundo rustica. 5. H. saviyaii. 6. H. rufula. 



N.B. — BibUs 7-vpestris and Hirundo rufula are characteristic of this Province, as far as the Western 

 Palaiarctic Region is concerned. 



/3. Mediterraneo-Persic Produce. 



Peculiar Genera : — 0. 



Peculiar Species: — 1. Cotile diluta. 



SpecicS which breed within its limits: — 1. ClteUdon urbica. '2. C lagopus. 3. Cotile ripuriu. 

 4. C. diluta. 5. Bib/is obsoleta. 6. Hirundo i-ustica. 7. H. rufula. 



■y. Mongolian Province. 



Peculiar Genera : — 0. 



Peculiar Species : —0. 



Species which breed within its limits: — 1. CheUdon urbica. 2. C. lagopus. 3. Cotile riparia. 

 4. Biblis rupestris. 5. Hirundo gutturalis. 6. H. daurica. 



A^. HlMALO-CArCASIAN SuB-PtEGIOX. 



Peculiar Genera : — 0. 



Peculiar Species : — 0. 



Species which breed within its limits: — 1. CheUdon urbica. 2. Biblis rupesiris. 3. Hiruudu 

 rustica. 4. H. rufula. 



B. ETHIOPIAN REGION. 

 B^. Saharan Sub-Regiox. 



Peculiar Genera : — 0. 

 Peculiar Species ; — 0. 

 Species which arc known to breed within its limits : — 0. 



This negative result, however, does not jirove that no species of Swallow Im-ed 

 within the limits of tlie Saharan Sub-Region, the fact lieiug that we know little or nolhiui;- 

 of the avifaima of this vast area. Undoubtedly SwaUowswill he round ni'stiiii; wiiliin 

 its borders, albeit, lor our present purposes, no statistics are avaihd)le. 



