DUIKERS AND SMALL ANTELOPES 549 
Rhynchotragince: Snout with the anterior nares greatly 
enlarged in order to accommodate the proboscis; nasal bones 
greatly reduced, the length not greater than the width; pre¬ 
maxillae greatly produced in the typical genus and turned 
downward at the tip; anteorbital fossa large as in the Neso - 
tragince. Genera included: Rhynchotragus and Madoqua. 
In the snout of Rhynchotragus we have a bony structure 
quite similar to that found in Saiga, which is also a proboscis¬ 
bearing antelope. In the saiga, however, the premaxillary 
bones are confined to the tip of the maxillary bones and the 
lachrymal bone is greatly enlarged and projects forward to 
the narial chamber, where it forms a considerable part of 
the wall. This arrangement is a unique condition in the 
Rovidce. The relationships of the subfamilies described may 
be expressed in the above diagram, Gazella being assumed 
to be nearest the parent stock. 
Pygmy Antelope 
Nesotragus 
Nesotragus von Diiben, 1847, Oefvers, Akad. Forhandl., Stockholm, III, p. 
221; type Nesotragus moschatus . 
The pygmy antelopes are of diminutive size, about equal¬ 
ling a hare, and of rufous or reddish coloration. The tail is 
short, and the false or lateral hoofs are absent. The ante- 
orbital gland opens on the side of the face by a single 
rounded pore. The horns are present in the male only, and 
are short, not exceeding the head in length, and project 
straight backward in line with the profile of the snout. 
They are heavily ringed except at the extreme tip. The 
