16. coAssus. 91 



VII, The Brockets. — Antlers simple, ruch'menfan/, shelvim/ back. Ko 

 metatarsal (/land cm the outside of the bone. Croivn tufted. Suborbital 

 jnt deep. Front of upper lip, under nostril, and front of chin white. 

 South America. 



16. COASSUS. 



Face elongate. Ears short and broad. Crown -with long hairs di- 

 rected backwards, and forming a crest at the base between the horns. 

 Crnmen small, circular. Hair smooth. Horns simple, subulate. 

 Small white spot quite in front of the upper lip. Fawn spotted ; 

 dorsal line one-coloured. Skull with a deep triangular suborbital 

 pit ; interraaxillaries triangular. (Cuvier, Oss. Foss. iv. t. 5. f. 44 

 and 50 ; Gray, Cat. Ungul. B. M. p. 238, t. 35. f. 4.) 



The skulls of the females have not the preorbital pit so deep as in 

 the males. The preorbital pit in the skulls of C. rufas are not so 

 large as in C. nemorivagiis, comparing sex with sex. In a skull of 

 a female fawn of 0. riifns in the Museum, no. 684 c, the jnt is shal- 

 low, and differs in size and depth on the two sides. There is also 

 one skull, no. 6846, of an older female received from Para, which is 

 said to have belonged to C rufus ; and it is only slightly concave in 

 front of the orbits, without any distinct pit. In the skulls of two 

 males, of very different sizes, in the Museum, the intermaxillaries 

 just reach the nasals ; in the skulls of two females they stop a short 

 distance fi'om those bones. We want a larger series of skuUs of au- 

 thentic specimens to study the value of these modifications. 



I. Coassus nemorivagus. (The Guava Vi'ja.) B.M. 



Fur iiniform pale brown ; underside of body and inner side of 

 limbs rather paler, with a distinct streak on the forehead before the 

 front of the eye. Fawn pale rufous, with many distinct white spots, 

 separate on the haunches. 



Coassus nemorivagiis, Gray, Cat. Utiyul. B. M. p. 237 ; P. Z. S. 



1850, p. 240, t. 22 (male), 23 (female), and 27. f. 1, 3, 5. 

 Cervus nemorivagus, Lichtenstein, Darstell. t. 21 (male and female). 

 Coassus simplicicornis, Gerrard, Cat. Bones B. M. p. 268. 



Hah. Bolivia ; plains near Santa Cruz de la Sierra {Bridges). 



Male with long horns. 



The fawn is very like the fawn of C. rufus, but rather paler, but 

 was sent by Bridges from the same locality as the adult. Both 

 species may be found there. 



2. Coassus simplicicornis. (The Brazilian Brocket.) B.M. 



Fur pale brown, punctulated ; hairs Avith a pale subterminal ring, 

 without any superciliary streak. Fawn with large pale spots, a 

 scries of them on the haunches, confluent, forming an oblique Hue. 

 Skull with a deep triangular suborbital pit, rather more shallow in 

 the females. 



Cervus simplicicornis, Illi(ier ; Prince Ma.vimilian, Abbild. t. ; Ham. 



^, 



