NEW AND IIAIIK REPTILES FROM SOUTH AMISRIC'A. 1061 



52. On New and" Rare Reptiles from South America. By 

 Joan B. Proctbu, F.Z.S., F.L.S., Curator of Reptiles 

 to the Society, formerly in charge of the Reptile 

 Collections in the British Museum (Natural History) . 



[Received November 12, 1923 : Read November 20, 1923.] 

 (Text-figures 1 & 2.) 



The British Museum has recently acquired two interesting 

 collections of Reptiles and Batrachians from South America. 

 The first was made by Mr. A. C. McDougall in Trinidad, on 

 the River Mamore, Bolivia, and presented in 1922. It 

 includes a very interesting new snake of the genus Oxyhelis 

 which I have named boulengeri after Mr. G. A. Boulenger, who 

 has given me so much help and encouragement in my work 

 during the past seven years. The second is a large collection 

 from Marajo Island, at the mouth of the Amazon. This was 

 made by Herr W. Ehrhardt, and it includes many rarities and 

 a new species of Amphishaina which I have much pleasure in 

 naming mitchelli after Dr. P. Chalmers Mitchell. 



Complete lists of the species collected are appended for their 

 geographical interest, but for the sake of brevity, notes on the 

 more common species are omitted. 



I. — The McDougall Collection from Bolivia. 

 ECAUDATA. 



B U F O N I D .F.. 



1. BUFO GRANULOSUS Spix. 



LACERTILIA. 



T E I I D .E. 



2. Pantodactylus sohreibersii Wiegm. 



iGUANIDiE. 



3. POLYCHUUS MARMORATUS L. 



OPHIDIA. 



GLAUOONIIDiE. 



4. Glauconia albifrons Wagl, 



Proo. Zool. Soc— 1923, No. LXIX. 69 



