Vol. 34, pp. 139-142 August 17, 1921 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



ON A SMALL COLLECTION OF REPTILES FROM 



ARGENTINA. 



BY T. BARBOUR. 



For about a year during 1920 and 1921 Mr. James L. Peters 

 conducted the Phillips Expedition to South America, the princi- 

 pal object being to collect birds for the Museum of Comparative 

 Zoology. At Huanuluan, however, in the Gobernacion del Rio 

 Negro, Mr. Peters found time to make a small and very inter- 

 esting collection of reptiles in a region which apparently has 

 been rather less worked than the territories of Chubut to the 

 south and Neuquen to the northwest. We owe much of our 

 recent knowledge regarding the reptiles of this region to Kos- 

 lowsky, whose papers appeared in the Revista of the LaPlata 



Museum. 



Paludicola bufonina (Bell). 



Peters found this frog abundant and preserved ten examples. 



Diplolaemus darwinii Bell. 



Peters collected six examples of this handsome lizard. In his report on 

 the Reptiles and Batrachians of the Princeton Patagonian Expedition, 

 Zoology, 3, 2, 1909, p. 221, Stejneger maintains the validity of D. darwinii 

 as a species distinct from D. bibronii, which seems to be entirely justified. 

 The combination of the genus Diplolaemus with Leiosaurus proposed by 

 Koslowsky in 1898 (Rev. Mus. La Plata, 8, p. 1G7) appears much less 

 plausible, although I have not material to do more than suggest that 

 his observations require confirmation. 



Phymaturus spurcus, sp. nov. 



Type an adult male, M. C. Z. No. 14,791, from Huanuluan, Rio Negro, 

 Argentina. Collected by James L. Peters. 



Somewhat intermediate between P. palluma (Molina) and P. patagonicus 

 Koslowsky. Peters' series of five specimens all agree in having more 

 spinose tails, smaller dorsal granules than patagonicus and a perfectly uni- 



27— Proc. Biol. Soc. Wash., Vol. 34, 1921. (139) 



