1904.] Allen, Mammals from Santa Marta, Colombia. 443 



1 Synetheres* group without having large series of specimens 

 for examination. 



"Tree-porcupines are found occasionally both in the dry 

 forest and in the mountains, but I could learn little about 

 their habits; they are certainly slow and clumsy animals, 

 commonly seen only on the larger branches of high trees, 

 seldom on the ground. At El Libano (5500 feet) one of these 

 animals was shot, but the specimen was lost; it was, appa- 

 rently, distinct from the kind collected near Bonda." 

 H. H. S. 



34. Dasyprocta colombiana Bangs. Thirty-five speci- 

 mens, of which 23 are skins with skulls, 3 skins without skulls, 

 4 skulls without skins, and 5 skeletons. They include young 

 of various ages, as well as adults. Less than one half were 

 sexed by the collector, and only about one fourth have flesh 

 measurements. All were taken at or in the immediate 

 vicinity of Bonda. 



Young, about one fourth grown, are darker and deeper 

 colored throughout than the adults, and the long black hairs 

 of the rump lack the whitish tips present in the adults. 



As the species was described from immature specimens (cf. 

 Bangs, Proc. Biol. Soc. Wash., XII, 1898, p. 163), the fol- 

 lowing measurements of adults will supplement the original 

 description. 



The flesh measurements of 8 adults are as follows: 



15438, 



15436, 

 14871, 

 23454, 

 15437, 



15444, 



15445. 



23455, ? " 66o ; I4 - 



Four 'old adult* skulls measure as follows: Occipito-nasal length, 

 121.5 (120-124); basal length, 1 97 (95-99); zygomatic breadth, 

 53 (51-55); mastoid breadth, 40.5 (40-41); interorbital breadth, 33.5 

 (32-34); breadth across postorbital processes, 43-7 (42-45); length 

 of nasals, 48 (47-49). 



1 Mr. Bangs gives the basal length of "a ? young adult," as 169.4 obviously a typo- 

 graphical error for 69.4. 



