14 ARKIV FÖR ZOOLOGI. BAND 14. N:0 20. 



tbree in number viz. O, lasiotis Osgood (the name of which 

 stånds in direct opposition to gymnotis!) from Merida, Vene- 

 zuela, O. columhicus (Fitz.) Cabrera from the Andes of 

 Colombia and O. peruvianus Gray. In the key, alluded to 

 above, Cabrera has used as distinguishing characteristic for 

 the last of these in opposition to the two first ones the rust- 

 red colour (»deep rusty red». Lydekker) of the tuft of the 

 tarsal gland. There are, however, also several other charac- 

 teristics, which are shared by lasiotis and columhicus, in con- 

 trast to peruvianus. These characteristics are present in the 

 former two races in the shape of a series of dark markings, 

 which are absent in the third or last species. O. lasiotis has 

 f. i. a broad blackish eye-ring which in O, lasiotis is com- 

 plete, but in O, columhicus at least is well developed in front 

 and below the eye (well visible in Cabrera's figures), but in 

 O. peruvianus its place is taken by a broad whitish eye-ring. 

 The two first species have a dark brown line along the upper 

 neck to the shoulders or the middle of the back, while in 

 O. peruvianus there is only a very slight and indistinct shade 

 of this behind the occiput. Jn the two first there are further 

 dark markings abo^e the hoofs, more or less extensively 

 continued up in front of the legs, but in O. peruvianus there 

 is no trace of such markings. O. lasiotis and columhicus are 

 thus evidently much more closely related to each other than 

 to O. peruvianus. As the knowledge about this Deer appears 

 to be rather incomplete to judge from the scanty notes in 

 the available literature, the following description of the pres- 

 ent specimen may be desirable, or even necessary if, as will 

 be done presently, the question is raised, whether the Deer 

 of the peruvia7ius'type may be different in Peru and in Ecu- 

 ador. 



General colour of the body grey, a little darker and more 

 brownish on the back than on the flanks. The colour is 

 produced by white subterminal rings and dark tips to the 

 hairs. On the middle of the back the length of the hairs 

 is about 4 Vs to 5 Vs cm. The concealed parts are smoke 

 grey, the outer parts warm sepia with a subterminal white 

 ring about 2 mm. broad. On the flanks the hairs have the 

 smoke grey colour all way from the base to the subterminal 

 ring, or are only slightly darkened just below the same, and 

 the thin tip is also brown, but of ten very small or missing, 



