small Mammals from Nicaragua and Bogota. 57 
Colour uniformly smoky brown above and below, darker 
than in Glossophaga soricina. 
Dimensions of the type (B.M. 95.4.27.1: an adult female, 
in spirit) :— 
Head and body 46 millim.; tail 6°7; ear 10; forearm 33 ; 
lower leg 12°6; calcar 5:8; hind foot, without claws, 7:5; 
interfemoral membrane in centre 17. 
Skull: basal length 16°8; greatest length 19°7; breadth 
of brain-case 8:1; interorbital breadth 4; palate length 11, 
breadth outside last molar 4:4; front of canine to back of last 
molar 6°4, the same below 6°4. 
Hab. Managua, Nicaragua. Coll. Dr. Rothschuh. 
This interesting little bat, on whose discovery Dr. Roth- 
schuh is to be congratulated, has a superficial resemblance to 
the common Glossophaga soricina, found in the same region. 
Without any very exhaustive examination, however, it may 
be easily distinguished by its hairy forearms, extension of 
wings to metatarsus, minute’upper incisors not touching one 
another, and the entire absence, at least in the adult, of lower 
incisors. ‘These points would all be visible in a freshly killed 
specimen without extraction of skull, and may be commended 
to the attention of collectors. 
2. Oryzomys Couest, Alst. 
One specimen, male. 
3. Oryzomys gracilis, Thos. 
Three specimens, all males. 
This is a considerable extension of the known range of 
O. gracilis, which was founded on a skin from Concordia, 
Colombia. ‘The three specimens from Managua, while 
obviously of the same species, differ considerably among 
themselves, and show that a good deal of allowance for 
variability should be made when studying these rats. Thus 
one of them, like the type, has a partially bicolor tail, while 
the other two have this member wholly dark; the inter- 
parietal of one is narrow and straight anteriorly, of the second 
broad and straight in front, and of the third convex ante- 
riorly ; the palatal foramina are in no two quite alike, those 
of one being fairly similar to those of the type, while in the 
other two they are broader in different degrees. 
The measurements of a spirit-specimen are as follows :— 
Head and body 92 millim.; tail 107; hind foot, without 
claws, 27; ear 16. 
