122 ORDER III. 



hind feet distinctly marked; finally, Mr. Macgilli- 

 vray thipks it probable, that the genus THYROPTERA. 

 of iSpix, as yet imperfectly described, may be referred 

 to the present. All these animals have the body 

 heavy in proportion to the narrowness of their wings; 

 hence they live more in caves and hollows, where, 

 by their superior apparatus for scaling walls, they 

 subsist on larvae, &c. They are found in America, 

 the Old Continent, and New Holland. 



There are fifteen admitted species, besides eleven 

 doubtful, arid some doubly denominated. 



Genus STENODERMA, GeofF. Narrow Banded 

 Bats. Ears small, lateral, isolated, with an au- 

 ricular operculum ; interfemoral membrane rudi- 

 mentary, lining the thighs like a band; no tail. 

 Dental formula of adult, incis. j, can. ^-, mol. T 8 5 

 = if = 26 (G. Cuv.). Little is as yet known of 

 this genus ; but the 



Genus DICLIDURUS, P. of Wied, or Box-tailed 

 Bats, is very remarkable, having a broad head; 

 pointed muzzle ; broad ears inserted over the eyes ; 

 and the tail consisting of two corneous valves, move- 

 able and hollow; the coccyx entering the upper 

 valve; the interfemoral membrane extending be- 

 neath and beyond the caudal valves. Dental for- 

 mula, as far as yet known, incis. , can ^-^, mol. ^g 

 = jf = 32. There is only one species as yet 

 known of this animal, first described by the inde- 

 fatigable naturalist, Prince Maximilian of Wied ; it 

 is tlie 



