514 



Mr. O. Thouia? 071 



Dimensions of the type (the starred measnreinents taken 

 in flesli) : — 



Forearm 38*7 mm. (other specimens : ? , 38'5, SB'S, 30). 



Head and body *43 ; tail *48; ear *14 ; third finger, 

 metacarpus 35-7, first phalanx 14-8 ; lower leg and foot 

 (c. u.) 26. 



Skull: greatest length 1G"8 ; condylo-basal length 15-6; 

 breadth across muzzle 5*4 ; breadth of brain-case 8-4 ; front 

 of canine to back of m^ 7"1. 



Bab. San Esteban, Carabobo, N. Venezuela. 

 Type. Adult male. Original number 77. Collected 24th 

 December, 1910. 



The four specimens are so uniformly larger than Miller's 

 type (forearm of S 36 ram., of ? 35), that it is evident that 

 the form inhabiting the Island of Curaqao is a small insular 

 race of its representative on the continent of South America. 



In studying this most interesting bat I am able to confirm 

 Miller's statement as to the imperfection of the posterior 

 palate, which is as he describes in all the specimens, one of 

 which I examined myself under a microscope before the soft 

 palate was disturbed. 



The palate-ridges are nine in number, the anterior ones 

 simple and transverse, the ])osterior divided mesialiy and 

 directed backwards in the centre, the whole series passing 

 gradually from the one condition to the other, 



Marmosa grenadce, sp, n. 



Allied to M. murina, but with 7 — 1 — 7 mamma?. 



General characters of the red members of the genus, but 

 the back is less rufous and more greyish than in most of 

 them. Central dorsal area approaching "broccoli-brown," 

 the sides becoming nearer " clay-colour," but the specimen 

 has been skinned out of spirit, so tiiat the colours are probably 

 altered to some extent. Under surface creamy white, the 

 hairs white to their roots except in a narrow area on each side 

 of the belly, bordering the darker colour of the flanks. Tail 

 pale grey, not becoming white terminally. Mammae 7 — 1 — 7 

 = 15, the SoMth-American M. mui-ina having 4 — 1 — 4 = 9 or 

 5_1_5 = 11. 



Skull shaped as in the Trinidad Marmosa, broader than in 

 that of Tobago; supraorbital ridges thickened, projecting 

 slightly over the oibits, but not forming angular postorbital 

 processes. 



