Secretary's Report. 1953. — Appendix 7 



PLATE 6 



Upper right: Allen's monkeys. These two were the first specimens of their kind to be 

 exhibited in the National Zoological Park and, with the exception of two others received 

 at the San Diego Zoo at about the same time, the first to be exhibited in the United States. 

 They are extremely rare, less than a dozen specimens having heretofore been in zoos or 

 museums anywhere in the world. 



Lower left: Young Brazilian flat-tailed otter. This is the first one to be exhibited in the 

 National Zoological Park, or, possibly, in the United States. These are large otters that 

 inhabit streams of the Amazon Basin. The feet are as fully webbed as the common 

 river otter, and the tail is flattened in a peculiar manner. 



Photographs by_Ernest P. Walker. 



