1915.] Allen, American Deer of the Genus Mazama. . 549 
both based primarily on specimens in the Paris Museum from Cayenne, 
collected by M. Piteau.! It is therefore quite unimportant that he believed 
the Gouzoubira of Azara to be the same species and compiled his account 
in part from Azara. 
I refer to this small species three specimens collected at Tumatumari, 
northern British Guiana, by Leo E. Miller in August, 1913. They are an 
adult female, a young female (just breaking through the alveolus), and a 
semi-adult male. The female (with the teeth considerably worn) may be 
described as follows: | 
Pelage long, coarse and soft; hairs of the nape not reversed. Upperparts grizzled 
pale fulvous gray, fading toward the ventral area, darkening to a broad median dorsal 
band of yellowish brown; hairs of the back ochraceous apically, narrowly banded 
near the tip with blackish; midventral area white, tinged with yellowish laterally, 
from chin to base of tail; limbs dusky externally, ochraceous buff internally; whole 
top of head dark brown, the long hairs of the crown more or less tipped with pale 
rufous; a supraorbital band of pale ochraceous from front of orbital region to side 
of crown; no white eyespot, but a small whitish area on either side of the rhinarium, 
and a whitish median spot above it; tail above like the back, white below; ears 
externally dark brown, scantily haired externally, nearly naked internally. 
Field measurements: Total length, & juv. 1020 mm., @ ad. 1160 (? = 1060); 
tail vertebree, «150, 2 120. 
The skulls measure: Total length, ~ 150, 2 189; condylobasal length, @ 159, 
2 176.5; occipitonasal length, 150, 2 162.5; preorbital length, & 83, 2 95.6; zygo- 
matic breadth, & 75, 2 76; orbital breadth, “ 75, @ 76; interorbital breadth, 
& 39, 2 35; occipital breadth, <7 53.2, 9 54; breadth of braincase, o 55, 2 56.4; 
nasals, o' 61 K 16, 9 51 K 16.4; maxillary toothrow,. o1-5U0.5, @: 50:3; m1, 6" 25, 
Q 23. The antlers of the male are smooth, slender spikes, 55 mm. long from burr. 
Preorbital portion of skull short, as in the M. cita group; about 50% of the condy- 
lobasal length. : 
Mazama superciliaris (Gray). 
Coassus superciliaris GRAY, Knowsley’s Menagerie, pl. xlviii, 1850 (Jan. 24, 1852) ; 
name on the plate but not given in the text.— Gray, Proc. Zool. Soc. London, 1850, 
p. 242, pl. xxv (animal), pl. xxvii, fig. 4 (front view of head). Para, Brazil. External 
characters only; Gray, Cat. Mamm. Brit. Mus., 1852, p. 239; Cat. Ruminant 
Mamm. Brit. Mus., 1872, p. 92, part; Hand-List Edentate, Thick-skinned and 
Ruminant Mamm. Brit. Mus., 1873, p. 161. ‘‘S. America.”’ 
The type locality, as given by Gray, is Para, Brazil, from which lo- 
cality I have seen no specimens, nor from elsewhere in east-central Brazil. 
According to Gray’s plates and description, this should be a well marked 
form, particularly characterized by the white band over the eyes. 
1 Cf. G. Cuvier, Ossem, foss., ed. 2, IV, p. 55: Pucheran, Arch. du Mus., VI, 1852, p. 474; 
Brooke, Proc. Zool Soc. London, 1878, 925. 
