208 TEN YEARS IN SWEDEN. 



I. Quadrupeds whose extremities are furnished with claws. 



ORDER I.-CHEIROPTERA. BATS. 

 Provided with membranous wings. Genus Vespertilio, L. 



*; ., TTJ 



-, varying; M., always ff, 



A. With divided ears. 



1. Ear thick, opaque, much shorter than head; tragus 



shorter than half the ear; prgemolars above or 1, 

 below 1. Vesp&rugo, Keys, and Bias. 



a. Prasmolars above 0, below 1. 



b. Prgemolars, above 1, below 1. 



(a) . The upper prsemolar is not apparant outwardly^ 

 for the hinder edge of the canine tooth joins on to 

 the furthest jaw tooth. 



(b). Upper prasmolar outwardly apparent. 



2. Ears thin, transparent, a very little shorter or some- 



times a little longer than the head. Tragus longer than 

 half the ear. Pointed prsemolars, -f . Vespertilio , Keys. 

 and Bias. 



a. Ears shorter than the head. 



b. Ears longer than the head. 



B. Ears grown up together on the forehead. 



1. Ears much longer than the head, thin and transparent. 



Praemolars, 2. Plecotus, Geoff. 



2. Ears shorter than the head, thick, and opaque. 



Praemolars, -. 



GEOUP 1. "With Divided Ears. 

 Gen. Vesperugo, Keys, and Bias. 



Thick-eared bats. Fladermus, Swedish. Ears much 

 shorter than the head, broad and thick. Tragus shorter. 



