VESPERTILIO CHILOENSIS.
PLATE III.
_V. fuscus: auribus mediocribus; trago elongato, angusto, apicem
versus attenuato; fronte concavo; rostro obtuso; caudâ ad apicem
extremum liberâ._
DESCRIPTION.—In size and colouring, this Bat very closely resembles
the _Vespertilio Pipistrellus_ of Europe; the wings, however, are
considerably broader in proportion; the antibrachium, tibia, and
tail, are each of them longer; the tragus of the ear is also
longer, and narrower.
The muzzle is short and obtuse, and furnished on each side with
numerous hairs, which, when compared with those of other parts,
are of a more harsh nature. The nose is naked at the apex. The
forehead is concave. The ears are narrow, and somewhat pointed,
emarginated externally, and have about four transverse rugæ: the
tragus is elongated, narrow, and pointed, and has the outer margin
very obscurely crenulated. On the chin there is a small wart, from
which spring several stiffish hairs. The tail is about equal to
the body in length, and has the extreme tip free. The fur is
moderately long, and of an uniform rich brown colour, and extends
on to the base of the interfemoral membrane above and below; the
remainder of this membrane is bare, and, together with that of the
wings, of a black colour.
In. Lines.
Length of the head and body 1 8
the tail 1 3½
Expanse the wings
of 8 3
Length of the ear 0 5½
the tragus 0 3⅓
the antibrachium 1 5½
the thumb (claw included) 0 2½
the tibia 0 6¾