Zoological Society. 53 



unc. lin. 



Longitude antibrachii 1 3 



auris 7 



Alarum amplitude 9 6 



The fur in this animal is long, of a delicate pale rufous on .the upper 

 parts of the body, but slightly tinted with grey next the skin ; the 



2 2 



under parts are ashy white. The incisor teeth are as usual —x— ; the 



two innermost of the upper jaw are widely separated, long-pointed, 

 and resemble'canine teeth ; the outer pair are very small. The forehead 

 is considerably arched ; the muzzle produced, pointed and depressed, 

 and has a slight concavity above; the nostrils are widely separated, 

 pierced laterally, and have a slight depression between them ; the tip 

 of the muzzle is naked. The lower lip has a small, smooth, naked 

 space at the tip. The ears are of a very pale brown colour, large, trans- 

 parent, pointed, and strongly emarginated behind ; the tragus is very 

 long and slender (its length being about 4f lines, and width at the 

 base less than 1 line), and decreases gradually in width from the 

 base to the point ; close to its root, externally, is a slightly i)romi- 

 nent angle. The wings are large and supported by very delicate 

 and slender bones, very transparent, and extend slightly on to the 

 toe of the llind-foot. The hind-legs are long and slender ; the foot 

 small ; the metatarsus shorter than the toes, which are slender and 

 very nearly equal, if we except the one to which the wing is slightly 

 attached, which is distinctly shorter than the rest. The interfemo- 

 ral membrane is ample, and presents a few scattered hairs : the heel- 

 cartilage long. The tail is long, and enclosed in th^ membrane to 

 the point ; the fourth vertebra from the base has much flesh about 

 it, which forms a small lump,— perhaps this is accidental. The 

 thumb is slender, but rather long. 



This species is remarkable for having long and extremely slender 

 limbs, and for the transparency of its flying-membranes. I could 

 read this writing through the wing-membranes, moistened as they 

 were with the spirit, at a distance of more than a quarter of an inch. 



Vespertilio Meyeni. Vesp. intense rufescenti-fuscus, pilis ad 

 basin albescentibus ; corpore subtus cinereo lavato ; brachiis rU' 

 fescentibus ; rostro brevi, obtuso ; auribus subtriangulis , ad apicem 

 rotundatis,postice emarginatis; tragis arcuatis, angustis, ad apicem 

 subacutis. . 



unc. lin. 

 Longitudo ab apice rostri ad caudae basin .... 1 7 



Cauda 11 



antibrachii 1 1 



auris 2J 



Alarum amplitude 6 6 



(2 2 \ 

 -J— J ; the inner- 

 most pair of the upper jaw are larger than the external pair, and bifid 

 at the apex. The forehead is moderately arched; the muzzle is 

 broad and but sparingly clothed with hairs, swollen at the sides ; 



