75 

 OPHIDIA (cont.). 



CoLHBRiD^ (coni.) ... 6 



Tarbophis 2 



Ccelopeltis 2 species. 



his 2 species. 



12 



VipeeidjE. 



Vipera 1 species. 



Cerastes 1 species. 



Echis 2 species. 



From tLe succeeding Lists of Arabian Ee[)tiles and the analyses 

 accompanying them, it will be seen that 21 species are found in 

 Arabia and nowhere else. Leaving these out of consideration, 

 und aho I£emidactt/lusJlaviviridis,^ui>i^ell,Za'menis diadema,Sclci[., 

 and llcJiis carinatus, Schn., all of which have a wide distribution, 

 embracing the greater part of India and North Africa, 55 species 

 remain, and of these only 1.3 are not found in Africa ; so that 

 the fauna has a most marked African character. Of the remaining 

 42 species, 23 are found in the Nile Valley, viz. : — Testudo leitJiii, 

 Grthr., Sfenodactylus elegans, Ktz., Sunopus llanfordii, Strauch, 

 Q-ymnodactylus scaler, Heyden, Ptyodacfylus hasselquistii, Donn- 

 dorf, Tarentola annularis. Is. Greoffr., Againa sinaita, Heyden, 

 Agama pallida, Eeuss, Uromastix cegyptius, Hasselq. & Lian., 

 Varanus griseus, Daud., Acanthodactylus hosTcianus, Daud., 

 AcantJiodactylus scutellatus, Aud., Eremias guUulata, Licht., 

 JEremias rubropunctata, Licht., Maiuia quinquetaniata, Licht., 

 Chalcides {S.) sepoides, Aud., ChamcBleon calyptratus, A. Dum., 

 Zamenis rhodoriiachis, Jan, LytorTiynchus diadema, D. & B., 

 TarhopMs dhara, Forsk., Ccelopeltis moilensis, Eeuss, PsammopMs 

 scJiohari, Porsk., and Cerastes cornutus, Hasselq. & Linn. The 

 affinity, however, of the North-Western portion of .the Arabian 

 fauna with that of Lower Egypt is further manifeste'd by the 

 presence in it of the species which enter the Nile Valley from 

 the north, viz. : — Agama stellio, Hasselq. & Linn., Eryx jaculus, 

 Hasselq. & Linn., and Oligodon melanocepJialus, Jan, and by the 

 occurrence of the Mediterranean species Hemidactylus tureicus, 

 Linn., Tarentola mauritanica, Linn., Chalcides (©.) ocellatus, 

 IForsk., Chammleon vulgaris, Daud., aud Ccelopeltis monspessulana, 

 Hermann ; so that if these be added to the 23 already enumerated, 

 31 species, so far, are common to Egypt and Arabia. But the 

 affinity of the two faunas is still further emphasized by a consider- 

 ation of the species that are distributed between the Nile and the 

 Eed Sea. The following species occur in the Southern end of 

 that area, viz. : — Fristurus flavipunctatus, Eiippell, Pristurus 

 cruoifer, Val., Hemidactylus sinaitus, Blgr., Mahuia hrevicollis. 



