O48 Bulletin American Museum of Natural History. [Vol. XXXIV, 
white with a wash of pale drab, darker laterally and on the middle of the breast; 
limbs drab gray in front and on the sides, buffy white posteriorly. 
Field measurements, total length, 980 mm.; tail vertebree, 100. 
Represented by a young female, in which the molars are fully developed but. 
not worn, and the anterior milk premolars and canines still in place. Skull, total 
length, 174; condylobasal length, 163; occipitonasal length, 150; preorbital length, 
88; zygomatic breadth, 74; orbital breadth, 74; interorbital breadth, 37.5; occipital 
breadth, 48; breadth of braincase, 63; nasals, 46 x 19; maxillary toothrow, 54; 
AD 
This specimen in coloration resembles, in a general way, a specimen of 
M. semplicicornis from Paraguay, but the upperparts are darker and lack 
wholly the broad band of cinnamon brown on the buttocks and sides of the 
tail, and the strong fulvous wash of the lower parts, while the dark drab 
color occupies three fourths of the circumference of the limbs instead of being 
restricted to a narrow band down the front. While the available material 
of the two forms is too limited for a satisfactory comparison, it is evident. 
that the Murelia specimen represents a form strongly differentiated from 
typical simplicicornis. 
Mazama tschudii (Wagner). 
Cervus nemorivagus Tscuupt, Fauna Peruana, I, 1844, p. 240. 
Cervus tschudit WaGNER, Schreber’s Saug., Suppl., V, 1855, p. 386 (name in the 
text of p. 387). Based on the above. 
This is doubtless a member of the M. simplicicornis group, of which I 
have as yet seen no Peruvian specimens. Judging by Tschudi’s description | 
it differs very appreciably in color from typical simplicicornis, and is also 
larger. It is quite probable that several forms of this type occur in Peru, 
in which case it will fall to their describer to fix the type locality for tschudiz. 
According to Tschudi, deer of this general type range in Peru from sea-level 
to 16,000 feet. 
Mazama nemorivagus (F. Cuvier). 
Cervus nemorivagus F. Cuvimr, Diction. Sci. Nat., VII, 1817, p. 485 (part, the 
Cayenne specimens only). 
Mazama americana Oscoop, Field Mus. Nat. Hist., Zodl., X, p. 43, footnote, 
1912 = Cervus nemorivagus F. Cuvier. 
Type locality, Cayenne. 
The name Cervus nemorivagus has been usually employed as a blanket 
name for all the brown brockets of South America. It is evident, from the 
author’s own statement, that his Cervus rufus and Cervus nemorwagus were 
