THE PROPER BATS. 
53 
56. V. TENUIS THE SLENDER BAT. 
The Slender Bat, though nearly resembling, and very difficult to dis- 
tinguish from, the preceding, {Tralatiie,) nevertheless, presents a few- 
constant characters, on which the specific differences are based. These 
are — a shorter and more obtuse muzzle ; form generally more slender ; ears 
decidedly shorter, less wide, and more pointed. The cranium also pre- 
sents this difference, that the maziliaries are shorter, the cranial cavity 
is also smaller, and less projecting, and the chanfrin shorter and wider. 
The similar characters, on the other hand, are, the length and dimen- 
sions ; a similar tragus ; very short toes ; the attachment of the mem- 
branes ; and the same appearance of the under face of the interferaoral. 
But besides, this animal has only one false molar in each side, which is 
strong, whilst the Tralatitc has two of very unequal sizes. The Slen- 
der Bat thus has five molars, both above and below ; the other has si.K 
above and si-x below. The nature of the fur and the markings are the 
same in both. They likewise inhabit the same localities in Java and Su- 
matra ; but this species has also been discovered in Borneo. — (Fig. in 
Tenim, Mon. II. pi. 57, figs. 5, 6, and 7.) 
57. V. MACELLUS THE TINY CAT. 
This is another new species, which has been discovered in Borneo by 
the Dutch travellers, who have sent four specimens to the Leyden 
Museum. Like the preceding, it may most readily be confounded w-ilh 
the Tralaiilc, but is distinguished from it not only by slight modifications 
in the forms, but by one striking character. The feet of the Tralatite, 
as of the Slendur Bat, are extremely small, with very short toes, and 
with the metatarsal bones comprised within the attachment of the mem- 
branes ; whilst in our present species the feet are strong, the toes are 
long, and the claws crooked, with the metatarsal bones quite free ; the 
muzzle, too, is stouter; the wings not so long; the interfemoral mem- 
brane less ample, and the tail shorter. In the two preceding, the tail 
is quite enveloped, whilst in this one the point is free, and the cars are 
a trifle longer. There is also a difference in the dental formula; the 
Tralatitc has six molars above and beneath, the Tenuis has five above 
and below, and the Maccllus has four above, without any trace of a 
false molar, and five below. The only difference in the robe is, that in 
this animal the fur is short and shining: the colours and size are nearly 
the same. 
.58. V. OREIAS THE OREIDE (OR BIOUNTAIN) BAT. 
This beautiful .sjx'cies, strongly characterized, and easily distinguished 
from its numerous congeners, has been received by M. Tcmminck from 
India. The size and forms are like the Pipistrelle of Europe, but the 
membranes are larger and more developed, rising from the toes : the 
thumb is armed with a strong crooked claw ; the ears are distant, broad, 
and long, with a round point, of a clear or yellowish colour at their 
base, and quite naked ; the narrow tragus is long, straight, and filiform. 
The muzzle is short and compressed, terminatiug in a point ; the upper 
lip has a double row of moustachios on it, the lower one short, the otlier 
long, with the hairs turned upwards ; there are also a few transparent 
ones on the lower lip. The fur is every where abundant and long; the 
membranes are naked, with the exception of a few hairs at the base of 
the upper surface of the interfemoral. It. is bi-coloured throughout; 
above, blackish at the root, the rest umber-brown, and shining ; the 
moustachios are black; beneath the roots are dull black, the lips grey; 
the membranes and ears are blackish-brown. Length about 3" ; width 9". 
59. V. MACRODACTYLUS—TIIE LARGE-TOED BAT. 
This is one of the Japanese stiecies of Bats, which the natives con- 
found under the appellation of Komuli, and which has been distinguish- 
ed in Europe. It is about the size of Daubonton’s Bat ; the muzzle is 
somewhat long and pointed ; the ears are long and straight, not wide, 
and lobeless, scooped on the outer margin, and pointed at the ex- 
tremity ; the tragus is long, narrow, awl-shaped, and pointed. The feet 
and toes are very long, and the latter are studded with a few hairs ; 
the claws are strong and whitish ; the tail very short, and free at the 
tip. The fur is short, cottony, and abundant ; the base of the upper 
side of the interfemoral is clad. The colour, above and below, is that 
of smoke-black, the points of the hair beneath being grizzly, so 
that the ahdoinen appears whitish. The cutaneous system is a deep 
brown. The length is 3", the breadth between 9" and 10". — (Fig. in 
Tern. Mon. 11. pi. 58, figs. 3, 4, and 5.) 
60. V. ABRAMUS THE ABRAME BAT. 
The Abraine Bat of the Japanese, whose name is here retained, has 
been sent to Leyden by M. de' Siebold. It is somewhat less than the 
I'iphtrellc ; the ears are oval, and round at the point, the outer margin 
VOL. U. 
being prolonged by a great lobe, to the commissure of the lips ; the 
tragus is leaf-shaped, somewhat curved. The muzzle is very short, and 
slightl}’ pointed ; the feet too are short ; the side membranes, and the 
base of the interfemoral, being clad. The fur of the superior parts of the 
body is black, with fawn-coloured tips, the stripe along the flanks, and 
at the base of the interfemoral, being fawn. Underneath, the colour is 
black, tipped with whitish-grey. The length reaches to 3", the expanse 
to 8" — (Fig. in Temm. Mon. II. pi. 58, figs. 1 and 2.) 
61. V. AKOKOMULI — THE AKOKOMULI BAT. 
This new species, like the preceding, has been discovered in Japan 
by MM. de Siebold and Burger. It is a trifle larger than the preceding, 
and has a longer and broader muzzle, and larger ears ; the feet and toes 
are very short ; strong and long moustachios adorn the lips ; the tragus 
is leaf-shaped, round at the point. The base of the interfemoral mem- 
brane is clad above. The fur of the male is mouse-coloured above, the 
tips having a reddish fawn tint; beneath black, with light grey points, 
the flanks and abdomen white. The female is of a lusset-brown above ; 
beneath, black tipped with light red. The length is 3", the width 9". 
— (Fig. in Temm. Mon. II. pi. 57, figs. 8 and 9.) 
Section IV. American Species. 
62. V. PH.'EOP.S THE BLACK-FACED BAT. 
This is probably the Phaiops of Rafinesque, which is alluded to in a 
note in Desmarest’s Mammalogie, (p. 135, ut. 5;) but M. Temmiuckhas 
taken his description from individuals he has himself received from Ten- 
nessee. It is about the size of the Marinas, but the tail is not at all free, 
and all the membranes are smooth; the ears are of medium length, much 
scooped out at their exterior margin, so that a lobe is formed at their 
base, and the rounded point is bent backwards ; the tragus is shaped like 
the willow-leaf. The fur is short, uniform in colour throughout, and 
smooth; above, it is bay-coloured or brown, strongly tinted with red; 
beneath, a lighter bay ; the face and membranes are black. The length 
is4V", the breadth 13". 
63. V. PULVERULENTUS.— THE POWDERED BAT. 
The Powdered Bat, which derives its name from the appearance of its 
coat, was discovered by Prince Maximilian de Wied, during his journey 
in the Rocky Mountains of North America, on the banks of the Missouri. 
It closely resembles our Parti-coloured Bat, in its general form, and in 
the markings of the upper parts of the body ; but is specifically different 
from the European species, by its being smaller in size, by its interfemo- 
ral membr.mie being clad all over on both sides, and by the under part of 
its body being differently coloured. Its muzzle is broad and obtuse ; the 
ears are broader than high, roundish, and clad half way up ; the tragus 
is hatchet-shaped ; the tail short ; the interfemoral membrane abundant- 
ly clad above, though less at the edge than the origin ; clad also beneath, 
but with white transparent hair, and in concentric lines ; the toes are also 
clad on their upper surface. The fur is long, silk)', and bi-coloured 
throughout, and yet the animal is all of one uniform colour. The hair is 
of a very deep marone colour, tipt with white, so that the whole surface 
appears as if besprinkled with white powder. The length is 3J-", the 
breadth 10". 
64. V. UR.SINUS — THE URSINE BAT. 
This is another new species which was discovered by the Prince de 
Neuwied, on the banks of the Missouii, and the description of which has 
been supplied by that eminent individual to M. Temminck; it is based on 
the examination of seven individuals. The head is large ; the muzzle long, 
broad, and somewhat depressed ; the nostrils arc large, opening cross- 
shaped at the side, and separated by a groove ; the ears are oval, and 
much higher than the summit of the head, vertical on their posterior 
margin, and somewhat scooped near the point; the tragus is long, and 
lance-shaped, blunt at the jjoint ; the concha is clad at the base exter- 
nally, the thumb of the strong wings is armed with a very crooked claw. 
The tail is long, with its tip free, and the membiane is marked beneath, 
with parallel rays, which give origin to a few fine bristles. The toe nails 
are very long, strong, and curved. The four incisors above are close set; 
the six below are tri-lobcd. The fur is long, silky, and shining ; above, 
of a lustrous umber-brown, beneath lighter; each hair is grey near its 
root. The membranes and ears are black. The total length about 4", 
the expanse about 11". 
65. V. CAROLINENSIS — THE CAROLINA BAT. 
The Carolina Bat of GcoflVoy, Godman, and others, has its ears as 
long as its head, oblong, and half clad externally ; the muzzle is some- 
what pointed, and the nostrils approximate; ihe tragus shaped like a 
o 
