1865. ] MR. W. OSBURN ON THE BATS OF JAMAICA. 73 
“‘ Sportman’s Hall Cave, 15th Dec. 1858. 
‘It was at the opposite entrance of the cave to that we entered, 
and among some Bats that, terrified by our intrusion, were flying in 
the daylight, that my servant caught the first specimen I had seen 
of this very extraordinary little Bat. On returning, he caught an- 
other in the interior. A drawing will hardly convey an idea of the 
odd form of this curious animal, whose round head, the long fur of 
which nearly conceals the feathers, and its bright little eye make it 
look more like a fish than an animal. Then such of the features as 
are visible are so excessively foliated by meandering lamine of skin 
as to be scarcely recognizable. Seen in profile, the thin muzzle and 
lower lip form a mouth very fish-like ; and often in the vertical pro- 
file the foliations of the chin are the most prominent, so that when 
it moved the jaw I fancied it like a caricature of a mumbling old 
woman. It is evidently congeneric with No. 4. It is not only 
similar to it in colour in the moustache which fringes sides of face, 
but also in the extreme fragility and thinness of its whole structure. 
The light was visible through the roof of the open mouth; and the 
molar membranes dried ike damp-paper. This is in great contrast 
to the firm well-strung frame of Molossus, as well as to the loose 
flabby make of Macrotus waterhousii (No. 8). During life I ob- 
served only a very slight motion of tips of ears at any sharp sound. 
Tail was curled upwards, so as to carry the interfemoral with it; 
this was caused by the calcanea bearing up the interfemoral. Femora 
long ; so that when reposing the knees were above the back, like a 
grasshopper’s. It jumped to escape, and opened jaws when touched ; 
but did not bite, or utter any sound. It seemed very delicate, and 
was dead by the next morning, though the rest of my captives were 
as lively as ever.” 
“Oxford Cave, Manchester, 22nd Feb. 1859. 
“Five males, twelve females (none apparently pregnant). 
‘There is a great difference in the shade of the chestnut-colour, 
which varies from a sandy buff to deep reddish brown. 
* Dental formula, M. =, C. — 16 <=34. 
““Molars. Upper, three larger much jagged; two lesser, first 
minute; second large, canine-like. Lower, three larger, much 
jagged ; three lesser. 
*‘Incisors. Upper, middle large, plain, like human; lateral 
minute, leaning towards them. Lower edges of all four level; each 
bi-notched. 
*« The muscular system of this Bat is not nearly so powerful as that 
of No. 6, but it flies with great agility and rapidity. The only house 
I ever knew them enter was Freeman’s Hall, where, notwithstanding 
the room was small and low, I had a long chase. I never saw them 
do anything on a flat surface but jump up. They soon die in confine- 
ment, and rarely survive the passage in the bag home. I observe 
that after death the volar membranes and forearm dry very rapidly; 
so that unless specimens are prepared immediately, these parts cannot 
