316 SAIMIRI 



Saimiri boliviensis nigriceps Thomas. 



Saimiri boliviensis nigriceps Thos., Ann. Mag. Nat. Hist., X, 1902, 

 p. 246. 



Chrysothrix entomophaga (nee D'Orb.), Wagn., Wiegm., Archiv., 

 1842, p. 357 ; Wagn., Schreb., Saugth. Suppl., V, 1855, p. 121, 

 pi. X. 



Type locality. Cosnipata, eastern Peru. Type in British Museum. 



Genl. Char. Black cap on crown of head; hands and feet to tips 

 of fingers and toes golden yellow ; tail grizzled yellow. 



Color. Top of head glossy black ; black line in front of ears ; white 

 auricular patch ; upper parts of body grizzled yellowish ; under parts 

 and inner side of limbs pale yellow ; tail above grizzled yellow, beneath 

 a central line clear yellow, tip black; inside of ears yellow. Ex type 

 British Museum. 



Measurements. Total length, 730; tail, 400; foot, 76, (skin). 

 Skull: total length, 66; zygomatic width, 41.5; breadth of braincase, 

 35 ; basal length, 42 ; occipito-nasal length, 61 ; intertemporal width, 29 ; 

 median length of nasals, 8.5 ; length of upper molar series, 14 ; length 

 of mandible, 36; length of lower molar series, 16. Ex type British 

 Museum. 



Saimiri cerstedi (Reinhardt). 



Chrysothrix cerstedi Reinh., Vidensk. Medd. Naturhistoriske 



Forensing Kjobenh., 1872, p. 157, pi. Ill ; Sclat., Proc. Zool. 



Soc. Lond., 1873, p. 434. 

 Chrysothrix sciurea Sclat., Nat. Hist. Rev., 1861, p. 510, (nee. 



Linn.). 

 Saimiris entomophaga Sclat., Proc. Zool. Soc. Lond., 1872, p. 3, 



(nee D'Orbigny). 

 Saimiri cerstedi Elliot, Mamm. Middle America and W. Indies, 



F. C. M. Pub., IV, Pt. II, 1904, p. 731, figs. 166, CXL, Zool. 



Ser. ; Id. Check-L. Mamm. N. Amer. Cont. and W. Indies, 



F. C. M. Pub., VI, 1905, p. 534, Zool. Ser. ; Id. Cat. Mamm. 



Field Columb. Mus., F. C. M. Pub., VIII, 1906, p. 559, fig. 



LXXXIII, Zool. Ser. 

 Saimiri cerstedi citrinellus Thos., Ann. Mag. Nat. Hist., 7th Ser., 



XIII, 1904, p. 250. 



CERSTED'S TITI MONKEY. 



Type locality. Chiriqui, Panama. 



Geogr. Distr. Guatemala? to Panama, Central America. 



Color. Face and sides of head to ears white ; top of head and 



