Bevised List of SoittJi African lieptiles and BatiucJiians. 517 



C— OPISTHOGLYPH^. 



27. HYDRUS. 

 Schneid. liist. Amph. i. p. 233 ; Bouleng. Cat. Sn. iii. p. 26(5. 



I. Hydkus platueus. 



Anguis platurus, Linn. S. N. i. p. 391. 

 Hydrus platuTHS, Bouleng., t.c, p. 267. 

 Indian Ocean and Tropical Pacific ; coast of Cape Colony. 

 Table Bay and False Bay (Stockdale, Fisk) ; George ; Cape 

 Agulhas (J. van Breda). 



28. NAIA. 

 Laurenti, Syn. Eept. p. 90 ; Bouleng. Cat Sn. iii. p. 372. 



Four Sj^ecies in South Africa. 



I. Suboculars separate the eye from the upper labials. 

 21 or 23 scales across neck, 19 to 21 across middle of body . . . . N. haie. 

 17 scales across neck as well as across body N. (iiicliiette. 



II. Third or third and fourth upper labials entering the eye. 

 Sixth upper labial largest and in contact with postoculars ; 23 scales 



across neck N.flara. 



Third upper labial deepest, sixth not in contact with postoculars ; 



23 to 29 scales across neck N. vifiiicoUis. 



1. Naia haie. 



Coluber haie, Linn. S. N. i. p. 387. 



Naia haie, Bouleng., t.c, p. 374. 



Southern Palestine, North and East Africa, Southern Ehodesia, 



Zululand, Transvaal. 

 Portuguese East Africa : Delagoa Bay (De Coster). 

 Southern Rhodesia : Hunyani River (Thomas, Darling) ; Salis- 

 bury (Darling). 



2. Naia anchiet^, Bocage, Jorn. Sc. Lisb. vii. 1879, p. 89 ; 



Bouleng., t.c, p. 387. 

 Angola and German South-West Africa, North-West Rhodesia. 

 Livingstone, North-West Rhodesia (Sykes). 



3. Naia flava. 



Vipera flava, Merrem, Tent. Syst. Amph. p. 154. 



Naia flava, Bouleng., t.c, p. 376. 



Cape Colony, German South-West Africa. 



