AKKIV FOR ZOOLOGI. 



BAND 12. N:o 10. 



On soiiie Mamiiials from tlic Argeiitine Cliaco, 



By 

 EINAR LÖNNBERG. 

 With 5 figures in tlie text. 

 Read November 13th 191 S. 



Not long ago Dr. J. A. Allén bas published a review 

 of the »American Deer of the Genus 3Iazama>y.^ With the 

 aid of this valuable paper I have reexamined the members 

 of the genus quoted in the R. Nat. Hist. Museum in Stock- 

 holm. I found then that some specimens, which hitherto 

 have been provisionally labeled Mazama rufa, deserve to be 

 discussed and described, as they cannot be referred to any 

 of the subspecies recognized by Dr. Allén. The specimens 

 have been collected partly in the »Chaco Central» i. e. the 

 territory between Rio Pilcomayo and Rio Bermejo, partly in 

 the »Chaco Austral» i. e. the region south or south-west of 

 the last mentioned river. They are thus found to the south 

 resp. west of Paraguay which is the type locality of Ma- 

 zama rufa Illiger. They have been collected by the Swed- 

 ish Captain A. Ros, who for some time lived at Rio de 

 Oro, a small tributary to Rio Paraguay near the mouth of 

 Rio Bermejo. From this place he evidently had opportun- 

 ities of hunting as well on the northern as on the southern 



^ BuU. American Museum Nat. Hist., Vol. XXXIV, Art. XVIII. 

 Xew York, Nov. 1015. 



Arkiv fur zoologi. Bd 12. Xo W. 1 



