1893-] Allen and Chapman on Trinidad Mammals. 221 



These specimens are provisionally referred to this species, with 

 the description of which they appear sufficiently to agree as re- 

 gards the general external characters. There are, however, some 

 discrepancies in respect to measurements. The dimensions of an 

 adult female (No. |yy), measured in the flesh, are as follows : 

 Total length, 456 mm. ; head and body, 231 ; tail, 225 ; hind 

 foot, 43 ; ear from crown, 15. 



Three skins measure as follows : 



Mr. Thomas's measurements of the type, from Demerara, taken 

 from the skin, are as follows: "Head and body, 190 millim.; 

 tail, 167 ; [hence, total length, 357 ;] hind foot, 36.2 ; ear (con- 

 tracted), 5.5." 



Hence Mr. Thomas's type, though said to be adult, is a much 

 smaller animal than either of our Trinidad specimens, if we re- 

 strict our comparisons to the skins. The measurements of the 

 skulls of the Demerara and Trinidad specimens would seem to 

 indicate that this discrepancy is more apparent than real, as 

 shown by the following : 



As noted above, Mr. Thomas has already recorded (1. c.) this 

 species from Trinidad, this being its second known occurrence. 

 Mr. Urich writes concerning the specimens collected by himself 

 and Mr. Mole : " They seem to be particularly plentiful on the 

 Caroni now, especially between the hours of five and seven in 



1 Tail imperfect mutilated in life. 



