123 



free and sharply clavved ; the index finger is composed of two, and 

 the middle offour, bony joints, 



" Theinterfemoral membraneisratherlarge,and isdeeplynotched 

 behind. 



" The tail is rudimentary, consisting of a single jointimbedded in 

 the base of the interfemoral membrane. It has, in the female, a 

 slight cartilaginous band extending beyond its tip, and separating 

 behind intotvvo diverging bands, oneextending to the middle ofeach 

 shin: in the malė. these bands are distinct at their origin. 



«' The hinder feet are large ; their toes are nearly equal, and are 

 strongly clavved. 



•* This genus agrees with Glossophaga in most of its characters, 

 and has the šame warty-edged slit on the middle of the under lip, and 

 the šame elongated tongue : but it difters in the form and structure 

 of the nose-leaf; in the tongue being covered with rough and closely 

 set warts, which are not placed, as in that genus, in oblique plaits ; 

 and in the shape of the centrai iipper incisors, vvhich are elongated 

 and conical, and not short and flal-topped and bevel-edged. In the 

 form of its upper middle incisors it agrees with Vampyrus soricinus, 

 Spix; but it is distinguished from that, and from all the other Vam- 

 pyri, by the structure of its under lip and tongue, and by the hinder 

 part of the nose-leaf being separated by a groove from the skin of 

 the forehead. Its interfemoral membrane is somevvhat likę that of 

 Vamp. Spectrum, Geoff., and has the šame muscular bands. 



BiiACHYPHYLLA Cavernarum. Brach. stipru badia, piJorum 

 apicibus saturatioribus ; infra palUd^ flavescenti-badia, 



Tcem. pallidior. 



Long. corporis cum capite, 44- unc. ; vlnce, 2-į- ; tibice pedisąue pos- 

 tici, in mare, 2-J-, in foemina, 2-į ; expansio alarum, 16. 



Hab. apud St. Viiicent's, Indiae Occidentalis. 



" The nose-leaf isoblong, transverse,notched and elevated behind. 

 'Yhetragus is triangular, elongated, crenulated on its outer and upper 

 edge and 3-lobed. The face is rather bald in front, with scattered, 

 rigid hairs; and there is a large convex wart, covered with rather 

 rigid hairs, on the back part of the cheek just under the eyes. The 

 wings are dark brown and bald; their front part and index fingers 

 yellow, with a fevv scattered hairs on the outsideof the thicker part 

 near the loins and hinder members. The malė is bay above, with 

 the tips of the hairs darker j beneath it is pale yellowish bay. In 

 the female the neck and wings are rather paler. 



" This Bat inhabits caves in St. Vincent's according to the late 

 Rev. Mr. Guilding, who proposed to call it Vespertilio Cavernarmn." 



Mr. Gray exhibited a dravving of a Shell, contained in the col- 

 lection of Mr. Adamson of Newcastle. It was obtained from the 

 base of the Parremo, near the Volcano of Tolyma, on the east slope 

 of the Andes. 



It may be thus characterized : 



BuLiNus Adamsonii. Bul. testd ovato-conicd, subtemti, purpu- 

 rascenti-albidd purpureo nebidosd, maculis oblongis purpureis 

 albisque bįfasciatd; nnfractibtis convexhtscrdis ; aperturd uvatd. 



