1915.| Allen, American Deer of the Genus Mazama. 543 
Ten specimens, as follows: Chepigana, adult male, Dec. 3, 1914; El 
Real, young male, adult male, adult female, Jan. 6-28, 1915; Tapalisa, 3 
adult females, Feb. 12-27; Boca de Cupe, adult female, April 30; Cituro, 
adult female, May 12; these localities are all in eastern Panama, at or near 
sea level (the highest, Tapalista, has an altitude of 400 feet), on the Rio 
Tuyra and its tributaries, Rio Cupe, and Rio Pucro. All were collected by 
W. B. Richardson. 
There is also a young specimen, in spotted coat, from Curchirbo, Canal 
Zone, collected by H. E. Anthony, Feb. 12, 1914. | 
These specimens are all doubtless referable to M. t. reperticia Goldman, 
from the Canal Zone, a much lighter colored form than M. t. cerasina 
Hollister, from Talamanca, Costa Rica. 
Unfortunately the skins are all without field measurements. | 
Two young adult males (teeth fully matured but not worn), total length, 
182,:195 mm.; condylobasal length, 177, 178; occipitonasal length, 160, 170; 
preorbital length, 89, 91; zygomatic breadth, 83, 82; orbital breadth, 81.5, 
82; interorbital breadth, 42.5; 40.5; occipital breadth, 53, —; breadth of 
braincase, 56, 59; length of nasals, 51, 58; breadth of nasals, 22.5, 22.5; 
maxillary toothrow, 59, 59; m'%, 28, 27.5; length of longest antler from 
burr, 39. ; 
Three adult female skulls (teeth only slightly worn), total length, —, 
190, 200.3; condylobasal length, —, 178, 183; occipitonasal length, —, 
165, 178; preorbital length, 95.5, 92.5, 105; zygomatic breadth, 82.5, 83.6, 
81; orbital breadth, 81.5, 83, 80.7; interorbital breadth, 40, 41, 43; occipital 
breadth, ——, 58, 59.3; breadth of braincase, 58, 60, 59; length of nasals, 
65, 58, 63.5; breadth of nasals, 23.5, 29, 22.5; maxillary toothrow, 60, 
58.3, 57.2; m3, 28, 27, 25.2. The ratio of preorbital to condylobasal 
length in the two males is 50 and 52.2; in three females, 50.2, 52, 52.3, as 
compared with 48 in 1 adult male and 3 adult females in M. s. cerasina. 
In 8 of the 10 skulls the posterior border of the nasals is broadly rounded, 
in the other 2 it is acutely pointed. The front border of the nasals 1s 
double emarginate in 9 of the 10 skulls and in the other tapers to a single 
median point. The premaxillaries reach the nasals, with a more or less 
broad junction, in 9 of the skulls; in the other they are wholly separated by a 
space of 5or6mm. In the two younger of 3 skulls still retaining the milk 
dentition the canines are present, in the other (the oldest of the 3) the canine 
alveoli are widely open but the teeth have been shed. In none of the adult 
skulls are canines present, and in most of them the alveoli have wholly 
disappeared. 
