ANDERSSON, BATRACHIANS FROM BOLIVIA, ARGENTINA, PERU. 9 



Leptodactylus pentadactylus Laur. 



Two specimens, 29,31 mm. in length, from Quinta, Prov. 

 de Jujuy, Argentina, July 1902. Erland Nordenskiöld. 



As the specimens are yomig and thus rather difficult to 

 determine, it is not Avithout hesitation 1 refer them to this 

 species, especially as it is not previously stated to ha ve been 

 found in Argentina, bnt they agree completely with the de- 

 scription of this species, except that the sole of the hind foot 

 is provided with small but distinct tubercles, arranged in 

 rows; besides we find in these specimens a faint thougli 

 distinct ridge running from the inner metatarsal tubercle 

 along the tarsus just as in specimens of Leptodactylus prognaihus, 

 mentioned below. As, in the latter case, there is no doubt 

 about my specimens being identical witJi L. prognathus Boul., 

 though BouLENGER in his description does not speak either 

 of such ridge or such tubercles, we may presume that their 

 presence does not prevent from ranging these specimens 

 under L. pentadactylus. 



Among Leptodactylus-species, hitherto known from Ar- 

 gentina, my specimens seem to agree most with L. ^nystacinus 

 Burm., but as the skin is not porous and the coloration dif- 

 ferent (at least in one of the specimens the upper Hp is white, 

 and of the dark Hnes along the back there are no traces in 

 any one) they probably do not belong to this species. 



Leptodactylus typhonius Daud. 



One specimen, 36 mm. in lengtli. Tatarenda, Bohvia, 

 Chaco. Nordenskiöld. 



It is a typical L. typhonius Daud., but the tympanum is 

 not larger than half the diameter of the eye. 



The species is previously recorded by Peracca (Boll. Mus. 

 Zool. Anat. di Torino vol. 12 1897 N:o 274 p. 17) from the 

 Bolivian Chaco. 



Leptodactylus ocellatus L. 



21 specimens, varying in length between 20 and 79 mm. 

 Tatarenda, Bolivia, Chaco, and Quinta, Prov. de Jujuy, Argen- 

 tina. Nordenskiöld. 



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