THE ROQUET-DOG BATS. 
45 
(B.) Species belonging to the New World. 
8. NYCTICEJUS PRUINOSUS— hoary ROQUET-DOG BAT. 
Syn. ViaPEiiTiLlO PiiUiNOSus. — Say, in Long’s Exped. to the Rocky Mount. 
I. 331. — Harlan. Faun. Amer. p. 21. 
HoAttY Bat. — Godman, Amer. Nat. Hist. I. 50. 
VespehtiuO Vtiiosissisius? — Geoff. Ann. Mus. VIII. 204. 
Chauve-Souris Septiemc, d'Azara — Quadr. II. 284. 
Nyctice-tus PwiinOsus. — Teram. Mon. Mam. II. 154. 
ScOTOPHiLOs Phoinosus. — Gray, Mag. Zool. and Bot. II. 498. 
Icon. Godman, I. c. fig. 3. 
This species differs but little from the preceding two, except in the 
colour, which is uniform throughout, with the exception of small white 
spots at the origin of the wings. The muzzle is short and obtuse, the 
■ears short, broad, and roundish; the whole of the upper part of the in- 
terfemoral membrane is clad, and a portion of the under. The fur is 
long, copious, soft, and silky ; the upper and under parts, and the inter- 
femoral, have all the same light rosy brownish colour, with a small spot 
at the insertion of each wing. Its total length is about three and a half 
inches, its expanse nearly twelve. 
II. NYCTICEJUS BONARIENSIS BUENOS-AYRES ROQUET- 
DOG BAT. 
SPECIFIC CHAEACTERS. 
The For dark grey on the back, ferruginous neat the tail ; dark be- 
neath. 
The Membranes extensively covered with fur. 
Inhabits the banks of the Missouri, North America. 
The ears of this species are short, and broader than high, not so long 
as the head, and clad exteriorly throughout half their length ; the tragus 
is leaf-shaped, and inclined towards the head ; the muzzle short and ob- 
tuse ! nostrils wide apart. The fur is long, and very abundant, extend- 
ing on the alar membrane along the arms and flanks, and being very 
abundant on both sides of the interfemoral. “ The hair on the back is 
black-brown at the base, then yellowish-brown, then blackish, and then 
white ; towards the rump dark ferruginous takes the place of the brown- 
ish-yellow on the fur ; beneath, the colours are similar to those of the 
back, but, on the anterior portion of the breast, the fur is not tipt with 
white, and on the throat is dull yellowish- white." — Say. The total length 
is four and a half inches. Mr Say states it is common in the Missouri ; 
it has also been found in Philadelphia, and other parts of the United 
States. 
9. NYCTICEJUS LASIURUS.— ROUGH-TAILED ROQUET-DOG 
BAT. 
Syn. NvcnCEJUS Lasiorus. — T emm. Mon. Mam. II. 156. 
Vespertilio Lasiurus Linn. Gmcl. I. SO. 
ScOTOPHiLos Lasiurus. — Gray, Mag. Zool. and Bot. II. 498. — Geoffr. 
Ann. Mus. VIII. 200. — Desm. Mom. No. 215 — Penn. II. 315. 
Icon. Sclireb. I. t. LXII. B — Geoff. 1. c. pi. 2 ; copied in Temm. pi. 47, 
fig. 8. 
SPECIFIC CHARACTERS. 
The Fcr reddish-yellow above, paler beneath. See description. 
The Head very small. The Membranes well covered with hair. 
Inhabits the United States and South America; common at Cay'enne. 
This Bat is remarkable for the smallness of its head ; its ears are short 
and oval ; the tragus, too, is short, and curved forwards ; its large inter- 
femoral membr.ane is uniformly clad above, and extensively, as is the alar 
membrane beneath. It has a spot of pure white on each side of the 
chest. The fur, in summer, differs from that of winter. During the for- 
mer season, the hair on the head and neck is red, tipt with yellow j the 
rest of the upper parts of the body have the hairs yellow at the root, and 
tipt with cinnamon-red ; the points in some are pure white : underneath 
the chin is bright red ; the chest, with the exception of the white spots, 
yellowish red ; and on the other parts red predominates. During win- 
ter, and in the young, the colour is a bright yellow, with a red tint ; the 
neck is bright red, and the white spots at the origin of the wings are con- 
spicuous ; the abdomen is rosy white, the membranes red. The total 
length, including the tail, is somewhat more than four inches, — the ex- 
panse eleven inches ; the size is seldom more considerable. The speci- 
mens from Cayenne are usually larger than those from the United 
States. 
10. NYCTICEJUS NOViEBORACENSIS ^NEW YORK ROQUET- 
DOG BAT, 
Syn. NYCTICEJUS Nov^boracensis. — T emm. Mon. Mam. II. 158. 
Vespertiuo Nov.*BOnACENsis. — I’cnn. Quadr. II. 31.3. — Linn. Gmel. 
I. 50 — Geoffr. I. c. 203. 
Atalapha AMERtCANA. — Desm. Mam. No. 227, from Rafmesque. 
ScOTOPUiLUS NovzRnoRACENSis. — Gray, Mag. Zool. and Bot. 11. 498. 
Icon. Penn. 1. c. pi. ClV. fig. Encycl. Method, pi. 34, fig. 5. 
SPECIFIC characters. 
The Fur of a uniform reddish-brown colour, with small white spots 
at the origin of tlie wings. 
The Muzzi.e short and obtuse. The Ears short, broad, and round. 
Inhabits New York, and the Northern States of the Union. 
VOL. ir. 
Syn. NYCTICEJUS Bonariensis. — Temm. Mon. Mam. II. 158. 
Vespertilio Bonarif.nsis. — Less. Voy. de la Coq. I. 137. 
Icon. Lesson, loc. cit. pi. 2, fig. 1, A, B, C, (cran. and teeth.) 
specific characters. 
The Fur yellowish on the back ; yellowish-brown on abdomen. 
The Ears short and oval. The Membranes dark red, the interfemo- 
ral clad above, naked below. 
Inhabits South America. 
We supply a description of this species in respect to M. Lesson, though 
we agree with M. Temminck, it will probably turn out to he only the NycU- 
cejus lasiurus. Its muzzle is short and conical ; the ears short, roundish, 
and wide apart. The face is clad with a few liairs ; long and silky hairs cover 
the under part of the side membranes, and extend along the fore-arm ; 
the interfemoral membrane is clad above, and naked beneath; the fur is 
abundant, and of many colours throughout ; tlie muzzle is yellowish-red, 
the back a liglit fawn, each hair ending in first a black and then a white 
part ; the upper part of the interfemoral membrane is of a deep dark red ; 
the throat, chest, and abdomen, are light brown. The total length is 
about three inches, the expanse about nine. The individual just de- 
scribed was captured in a vessel lying at anchor in the River La Plata. 
doubtful species. 
Ill this category we place two species, upon which Rafinesque origin- 
ally founded the genus, but which have not since been seen, or at least 
described, by any Naturalist, American or European. 
1. Nycticbjus humeralis The Blnclcsliouldcr Bat of Rafinesque, 
and noticed by him in Kentucky, North America. It is about three and a 
half inches long, including the tail; the ears are oval, longer than the 
head, and blackish, as is the muzzle ; the eyes are small, and hid by the 
hair. The fur is a deep brown colour above, grey beneath, with black 
shoulders ; the membranes are very dark. 
2. Nv'cticejus Tessellatus. — The Melted Bat is about four inches 
long, one half of which is occupied by the tail, terminating in a project 
ing tubercle ; the nose is bi-lobcd ; the ears almost hid in the fur, which is 
bay-coloured above, fawn beneath, with a narrow yellow collar, and 
white arm-pits ; the wings are netted, and tipt with red. Like the for- 
mer, it inhabits Kentucky. 
IMAGINARY GENUS. 
Atalapha. — The genus Atalapha of Rafinesque, which has been 
adopted by Desmarest, Lesson, and others, having been founded upon 
an aged individual of the New York species which had lost its incisors, 
must, of course, be blotted out from our systems. 
GENUS XXIV. VESPERTILIO.— BATS PROPER. 
Syn. Vespertilio, (in part.) — Linn. Gmel. I. 45 — Geoffr. in Ann. Mus. 
VIII. 187 Fischer, (in part,) Syn. Mam. 100 — Desm. et Auct. 
Vespertilio ct Plecotus — Les Oreillarus — Cuv. Keg. Anim. T. I. 
120, 121. — Geoffr. loc. cit. et Cours de I’Hist. Nat. Le;. 14, 23, 
et alia. 
VespertiliOnina, (in part.) — Gray, Mag. Zool. and Bot. 11. 494. 
Lesson, et al. 
generic characters. 
^I2-1-C-1-4M 1"^ to 
The Dental Formula 
*j2+C-P(2F±4^18^3g 
Is+T^KgF-P'UM 20 
And also, according to tEe number of false molars, 34 and 36. 
The Tail is invariably included in the interfemoral membrane. 
The Nose without nose-leaf, ridges, tubes, &c. 
The Middle Finger has three phalanges. The Ring and Little One 
wo. The Index one. 
