1904.] Allen, Mammals from Santa Maria, Colombia. 



assumed difference in the relative length of the tail in the two 

 species A . felina and A . lemurina is erroneous. 



" NOCTURNAL MONKEY. I know nothing of these monkeys 

 except that they are occasionally found in the dry forest, near 

 sea-level, sleeping in hollow trees during the day; generally 

 two or three are found together. The few specimens brought 

 in were very fat, even the skin being so oily that it was pre- 

 served with difficulty, and we lost several. The species may 

 be more common than it appears ; it is seldom observed owing 

 to its habits." H. H. S. 



78. Cebus capucinus (Linn.). Thirty-two specimens, of 

 which 27 were taken at or near Bonda, 4 at Minca, and i at Ca- 

 cagualito. They include many adults of both sexes, as well as 

 immature specimens of various ages. Nearly every month is 

 represented, but they were taken mainly in March and April 

 (5), October and November (6), and July and. August (6). 

 Even the adults are exceedingly variable in coloration, and 

 thus conform to what other authors have written of this 

 feature of the species. 



Absence of material from Guiana, the type locality, or 

 from any other localities, renders a comparative study of this 

 fine series impossible. 



The following external measurements are from the collect- 

 or's labels, except that the head-and-body length is obtained 

 from subtracting the tail length from the total length. As so 

 often happens in mammals, and especially in those with long 

 tails, the tail in the female is relatively longer than in the 

 male. 



EXTERNAL MEASUREMENT. 



14620 $ Total length, 959; head and body, 495; tail vertebrae, 464. 

 14849 $ " 965; " S8; 457- 

 15481 & " 965; 533; 432. 

 23392 $ 1003; 58; 495- 



23394 6 " 976; 472; 457- 



23395 $ " 889; 383; 504. 



23396 $> " 895; 400; 495- 

 23753 ? " 9*41 5*9; 495- 

 23751 ? " 838; 393; 445- 



14616 9 " 876; 419; 457- 



14617 $juv." " 832; 444; 388. 



14621 ? " " 876; " 44i; 435- 



