Ilollislc'i Four Nc'iv Mdmuuils from I'roplcul Aiuerica. lO'") 
Cebus margaritae sp. nov. 
189(). Cebus apella Ivoiunson, Proc. V. S. Nat. .Mus., vol. IS, p. (ial (not 
of Linuanis). 
1002. Cebus fntuellus Cl. .M. ]*roc. lliol. Soc. Washington, vol. 15, 
p. 07 (not of Linna'us). 
Ti/pe from ^Margarita Island, Vene/nela. Skin and skull of ohl adult 
9 , United States National iMuseuin No. (v),210. Collected July 18, 1(S05, 
l)y Wirt Robinson. Oilg. No. 520. 
Characters. —.\pparently related to Cebus apiculatns Ulliot and C.fatu- 
ellus (Linn.). No wlutish on foreliead; tufts, entire forehead, crown, 
nape, whiskers, and line under chin blackish; ni)per arms clear warm 
buff on outer side to elbow; tail blackish, in sharp contrast to color of 
rump and hips. 
Color of type. —Face thinly covered with dusky aud grayish hairs; 
forehead from line just above eyes and including well marked tufts, crown, 
back of bead, and naj)e black, with narrow brownish underfur; whiskers 
continuously blackish from crown around under side of throat; upper lip 
and chin grayish-white; area between whiskers and ear brownish-gray. 
Sides of neck and entire upi)erparts and sides of body dark brown, lightest, 
most tawny, anteriorly and darkest, almost Front’s brown, posteriorly, 
the underfur everywhere darker than hair tips; an indistinct darker, 
blackish-brown dorsal stripe. Underparts of body mucb brighter, more 
reddish, the hairs yellowish at bases and dark reddisb-brown near tips. 
Arms warm buff on outer sides from sboulders to ell)Ows, darker, more 
reddish-brown, on under sides; forearm and bands blackish, mixed with 
buff on outer side to wrist. Hips brown like back, the color extending 
in a mixed black and brown area to knee, and faintly to ankle; rest of 
legs and the feet black. Tail all black except at extreme base, where the 
color blends into brown of body. 
Measurements of type. —Total length, 7(11 mm. ; tail, 881 ; hind foot, 
110. Skull: {greatest length, 80.1; condylobasal length, 08.1; zygomatic 
breadth, 57.9; breadth of braincase, 48.7; upper molar-premolar row, 
28.1; upper tooth row', including canine, 28.2; mandible, 57; mandibular 
molar-premolar row, 25.4. 
Remarks. —The single example on which this species is based did'ers 
greatly in color from all other specimens of Cebus in the National Mu¬ 
seum collection, and from the accounts of all forms I can find described 
in literature. 
Cebus capucinus limitaneus snbsp. nov. 
Type from Segovia River, eastern Honduras. No. U. S. National 
5Iu.seum; skin and skull of cJ' adult. Collected in 1887 by C. IT. Town¬ 
send. 
Characters. — hike Cebus capucinus Imitator 'VhonvA'A ui western Fanama 
and Costa Rica,* but slightly smaller, wuth decidedly smaller sk ull. 
*.See Goldman, Proc. Biol. Soc. Washington, vol. 27. p. 99, 1911. 
