12 ARKIV FÖR ZOOLOGI. BAND 12. N:0 10. 



ish on the upper lip behind the wliite labial spöt. Behind 

 the rhinarium and below the nostril tliere is namely a dis- 

 tinct white spöt/ and above the eye is a large isabelhne 

 white spöt. These markings appear to be of distinctive im- 

 portance, because Allén declares that the by him examined 

 specimen from Paraguay, which he for geographical reasons 

 regards to be of the typical race of Mazama simplicicornis, 

 has »no white facial markings». The chin is also white, and 

 the throat creamy whitish. The lower side of the neck is 

 paler than its lateral parts, but otherwise of the same pecu- 

 liar grey colour. The back of the ear chiefly dark brown, 

 but on the outer side it is broadly whitish for about half 

 the length of the ear. It is also partly white at the base of 

 the inner edge, and the inside is lined whit white hairs. The 

 front of the före legs has the same grey brown colour as 

 the sides of the body, but it darkens gradually and becomes 

 somewhat more dusky brownish towards the foot. The in- 

 ner and posterior side of the före legs is a påle shade of buff 

 almost paler than Oberthur & Dauthénays 309, i, with 

 rather sharp line of demarkation against the colour of the 

 front side. The colour of the belly is buff, exactly the just 

 quoted 309, i. The outer side of the hind legs is coloured 

 like the body, the inner side buff (309,3). The upper side 

 of the tail is the richest shade of Oberthur & Dauthénay's 

 buff 309,4, the under side is white. This same shade of 

 buff colours also the posterior side of the buttocks down 

 towards the heels, and the sides of the hams are also some- 

 what overlaid with the same colour, but it shades gradually 

 into the general colour of the flanks. With the exception 

 of the white markings of the head, the colour of this race 

 on the whole resembles that of simplicicornis pretty nearly, 

 but with regard to the said markings it reminds about the 

 geographically distant races from the more northern parts 

 of the continent. From the nearest geographical neighbour, 

 Mazama simplicicornis of Paraguay, the present race differs 

 not only by the markings mentioned, but also by its in all 

 dimensions smaller skull. ^ There appears thus to be a quite 



* But there is no white median spöt above the rhinarium as in M, 

 nemorivagus according to Allén (I. c, p. 549). 



- It is true that Allén reeords the length of the maxiilary tootb 

 row of his specimen from Paraguay to 54 mm- while the same dimension 

 of this race is 55 — 56 mm. This is, however, naturally explained by th© 



