MAMMAtlA. 
hi 
Mortnoops UainvilUi (Leach). On its 'habits see Osburn, Pi*oc. ^ool. Sod. 
1865, 72 ; a detailed description is hdded. 
^Chihmjctefis oshurnt (Tomes), dn its habits see Osburn, t c. p. 68. 
^ Furta horrens (F. Cuv.) is described by Peters, Monatsber. Ahad. ' Wiss. 
Berl. 1865, p. 645. 
^ Prof. Peters lias given a short synopsis of the genus Molossu$ 
and the genera allied to it in Monatsber. Akad. Wiss. Berl. 
1865, pp. 573-575 :~ 
L Nyctinomm (Geoff.). Upper lip with more or less distinct cross folds. 
Ears very approximate or connected by a membrane. Intermaxillaries sepa- 
rate as in Vespertilio, Lower incisors 6 in young age, 4 (rarely 2) in the 
adult state. 
a. Nyctinomus s. s. Upper lip with distinct cross folds. One upper 
premolar. 1. N, hrasiliemis (Geoffr.). 2. N, gracilis (Wagn.). ? 3. N. au- 
ritus (Wagn.). 
b. Mormopierusj subg. ii., p. 574. Upper lip with shallow cross 
folds; ears distinctly separate ; snout flat. Two upper pfemolars. M.jugu- 
laris, sp. n., p. 258, from Madagascar. 
II. Ciiii'omeles (Horsf). Upper lip thick, without cross folds. Ears dis- 
tant. Intermaxillaries united ; upper incisors contiguous, not toitchiiig thd 
baniudS. 
? III. Myopterus (Geoffr.). 
PIV. Mops (F. duv.). 
V. Molossus (Geoffr.). Upper lip thick, without cross folds. Intermaxil- 
laries united ; upper incisors contiguous. 
a. Promops (Gqxy.). Ears very large, directed forwards, and more 
or less united by a fold of the skin. Two upper premolars ; upper incisors 
with the crowns divergent, and with the broad base touching the incisors. 
I. M. peroiis 2. M. gigas (Vei.), 3. M. ahrastis (Ti&mm.') 4. M. 
ferox (Gimdf). 5. M. 7iasutus (Spix). 
b. Motossus s. s. Ear^ inclined forwards, more or less distinctly 
united by a fold of the shin. One upper premolar ; upper incisorS with the 
inner edges parallel, and with the base touching the canines. I. M, rufus 
(Geoffr.). 2. M. ohscurus (Geoffr.). 
c. Molossops (subg. n.; p. 675). One upper premolar ; upper incisors 
with the crowns divergent, and with their base separated from the canines bjr 
a diastema. Ears moderate; triangular, distinctly separate. Muzzle flat ; lips 
thick, smooth. Skull similar to that of Morjnopierus. , 
1. M. temminchii (Lund). 
2. M. planirosb'is, sp. n., p. 675. Ears but little broader than 
high. Wing-membranes naked, except a narrow border of the lumbar por- 
tion, and below the dorsal surface of the lower arm, at the fifth finger, and 
on the humeral portion above the lower arm. Above dark ferruginous ; 
lower parts light ferruginous laterally, and white mesially. Wings brownish 
black. Total length 78 millim. From British Guyana. 
3. M. hracliymeles, sp. n., p. 575. Ears but little broader thah 
high. Ventral surface of the wings naked, except along a narrow strip on the 
