Cheikopteea. MABIMALIA. Cheiropteea. 
xxiv 
as the present. Gray, of the British Museum, has given 
a very thorough account of the Fruit-eating Bats, 
but they do not concern us, as they are all of the Old 
World — those, at least, that are technically so called. 
We have consulted many works, including those of 
the French and German explorers, on the zoology of 
South America and Central America, and have 
perused the long line of “ Transactions ” and “ Pro- 
ceedings ” of the various learned societies, in hopes 
of bringing together a somewhat complete account of 
the Bats of the American Continent. The valuable 
collection of the Prince Maximilian, and the superb 
specimens procured from M. Verreaux, of Paris, all 
now in the American Museum, in Central Park.X. Y., 
have been consulted with advantage. Altogether, we 
find little of value that is not included in the “ Mono- 
graph ” by Dr. Allen. The habits, of course, are not 
well known, and are less likely to be observed than 
those of most other animals. 
In Dr. Allen’s “ Monograph,” he arranges the Cheir- 
optera under two principal sections : Istiophora and 
Gymnorrhinn — the former having upright appenda- 
ges on the nose, and the latter without them. The 
following single species, only, is classed under the 
former head ; the others, commencing with family 
Noctilionidm, are under the latter. 
Family— MEGADERMATTDyE. 
Macrotus. — Gray. 
This genus has the nose-leaf simple, triangular and 
acuminate. The ears are large and joined ; the leafy 
appendage is simple and erect. The interfemoral 
membranes are large, giving rise to the family appel- 
lation, The point of the tail is free. The 
dentition is: Molars, f ; Canines, j- ; Incisors, f ; 
Canines, 1 ; Molars, == 34 teeth. 
THE CALIFORNIA BAT {Macrotus calif ornieus ). — 
4'he head of this species is long; face hairy. The 
ears are large, as its generic name imports, and 
almond-shaped, united over head by an incised, trans- 
verse membrane, and are slightly liairy. The fur is 
indistinctly tricolored. Above, the base is white, the 
terminal third fawn colored, and its tip white. The 
hair about the face is shorter, and more inclined to 
brown. Immediately behind tlie junction of the ears 
the head is almost naked. Its habitat is California. 
Specimens are found at Cape St. Lucas. 
The Large-eared Bat is closely related to M. Water- 
housii of Gray, from Cuba, Hayti and other West 
Indian islands, but is a distinct species. 
Family— NOCTILIONIDiE. 
N YCTINOMUS. — Geoff. 
This genus has the ears generally joined ; the lips 
are thick, pendulous and grooved. T’he nose is sharp 
and well defined. The tragus is obtuse, broad and 
square. The tail is produced beyond the inter- 
femoral membrane, nearly half its length. The great 
toes are separated from the others, and are fringed on 
the outer side. The skull is very papery and inflated, 
the facial angle very small, the auditory capsules 
large, and lower jaw slender and elongated. 
Nyctinomus nasutus. Tomes . — This is the Molossus 
nasutus of Spix, Dysopes nasutus of Temminck, N. 
braziliensis of GeoffVoy, N. murinus of Gray, Nycticea 
cynocephala of Leconte, Molossus cynocephalus' of 
Cooper, and M. fuliginosusof same author, Rhinopoma 
carolinensis of Gunlach and Nyctinomus mexicanus of 
Sauss. 
The head of this species is rather large, the heavy, 
pendulous lips giving it a bulky appearance. The 
ears are as broad as high, obtusely square, almost 
joining at the top of the head ; on their inner, anterior 
border, five small warts are observed, fl'he outer bor- 
der is emarginate at its upper, strongly concave at its 
lower portion, where at its basal third it is doubled 
upon itself. The mouth has upon it a bristled wart. 
The fur is thick, short, soft, and almost entirely 
confined to the body. Above, it is dark fawn at the 
tip, with a base of a whitish hue. It extends up upon 
the back of the ears one third their height. There is 
a very delicate patch on the interbrachial membrane. 
In front, the color is light cinereous at base ; the tip 
is a delicate fawn. The foot is large ; toes furnished 
with long hairs. This species is extensively distribu- 
ted throughout the warmer parts of America. Speci- 
mens obtained in South America agree well with 
those found in South Carolina; and those from Hayti, 
also, are the same. , 
Family— YESPERTILIONID YE. 
N YCTicEJUs. — Raf. 
In this genus the head is short, broad and flat. It 
has two upper incisors. The ears are small, simple, 
widely separated, with the basal lobe small and 
curved ; the external basal lobe also rather inconspicu- 
ous. Between the latter and the angle of the mouth 
a small war.t is seen. The tragus is straight on the 
internal, irregularly convex on the outer, border. Tlie 
face is black ; nostrils are simple, not produced, and 
very little emarginated. The sides of face are very 
much swollen. The lower jaw has a large naked place 
at the chin. Eyes are small, with a wart above on each ' 
side. The membranes are naked, blackish-brown, 
extending to the base of the toes. The tip of the 
tail is exserted. The fur is rather scanty, with 
the exception of a small patch at the base of 
interfemoral membrane. The color of the back 
is dark fawn on the upper half, and the lower is a 
lighter hue. Specimens are from Pennsylvania to 
Texas. 
Nycticejus crepuscular is, A lien . — Vespertilio creeks 
of F. Cuvier, N. humeralis of Raflnesque. 
Lasiurus. — Raf. 
This genus is characterized by having the head 
depressed, lips slightly fringed, the nostrils wide apart, 
the skull flat and massive, occipital crest prominent, 
and the facial line abruptly elevated. 
THE RED BAT [Lasiurus noveioracensis, Tomes). 
'I'his is Vespertilio noveboracensis of Erxl, Nycticejus 
noveboraceusis of Leconte. It is distributed over the 
temperate regions of North America, and is some- 
what abundant. The head and face of this is hairy. 
