VESPERTILIO TEMMINCKII. 



which terminates below in a small lobule ; a little above this is situated the dilated 

 tragus, (oreillon, or operculum,) which is linear, erect, somewhat falciform, and 

 shorter than the auricle. Interiorly the ear has several transverse membranaceous 

 folds. 



The entire length of the Vespertilio Temminckii is four inches and six lines ; of 

 this the head occupies about one inch, and the remainder is made up in nearly equal 

 proportions, by the neck and body, and by the tail. The neck is thick, and the body 

 robust, and very gradually attenuated. The tail consists of seven delicate cylindrical 

 vertebrae, supporting a large interfemoral membrane, expanded at the sides by a 

 delicate cartilage. About the middle of this, a small semicircular appendage of the 

 membrane is placed exteriorly. The anterior extremities have an expansion of 

 twelve inches. 



A peculiar character is afforded to the Vespertilio Temminckii by the shortness 

 of its fur. It is uniformly and thickly covered by very soft, delicate, silky hair, 

 closely applied to the skin : on the upper parts this hair is about a Une in length ; it 

 is shorter and more dehcate on the head and forehead : on the breast and under side 

 of the neck it is somewhat longer, and constitutes, when raised, a soft down ; but 

 it more naturally lies close to the skin. The colour of our animal is pure dark 

 brown above, grayish brown, somewhat dusky, underneath, with a rufous tint 

 extending laterally from the nose to the tail. The transparent membranes are brown, 

 with a tawny lustre. The interfemoral membrane is slightly veined in the middle, 

 and plain at the sides. 



Of the remaining species I shall at present give the specific character -with a 

 very concise notice, reserving for a future opportunity a more detailed description. 



II.— VESPERTILIO AD VERSUS, Nob. 



V. capite cuneato postice alto, rostro lato, dentibus primoribus maxillae superioris per 

 paria de laniariis remotis scalpris emarginatis denticulis adverse positis, auri- 

 culis erectis obtusis parum postice spectantibus trago lineari erecto, vellere sub- 

 lanuginoso pilis longis supra fuscis nitore griseo subtus albido-canescentibus. 



Dentium formula : — Primores 't±, Laniarii l=i, Blolares ^. 



The upper jaw is broad, and the series of teeth are, comparatively with other species, distant from each other. 

 Front teeth, two on each side, approximated in pairs, and somewhat removed from the canine teeth, erect, compressed, 

 emarginate, with the sides in contrary directions, so that the notches are placed adverse to each other, the interior tooth 



