40 



me, and on turning about I was confronted by this 

 little animal in a most defiant attitude. He had flown 

 in at the open window. Not having time then to 

 carefully study it I put him under a glass until morning 

 when, upon investigation, I found that he was unlike 

 anything in the Ohio report. So, I determined him to 

 be a specimen of Nycticejus crepuscularis, or ac- 

 cording to later reports, Nycticejus humeralis. The 

 late Professor D. S. Kellicott confirmed my determina- 

 tion without the least reserve. 



The family Vespertilionidae is now represented in 

 this state, so far as we know by the three genera, 

 VespertiJio, Atalapha, and Nycticejus. According to 

 the classification set forth in Jordan's Manual of the 

 Vertebrates of the United States, this family may be 

 described as follows: "Insectivorous bats with the 

 snout appendaged, or merely with two lateral excres- 

 cences. Wing membranes ample. Tail completly in- 

 closed in the interfemoral membrane, or only the last 

 joint exserted." 



As to the division into genera, the first division is 

 described in this manner: "cheeks without excre- 

 scences," and includes Vespertilio, (with incisors ^:^^ ), 

 and Atalapha, (with incisorsg^). 



The second division of the family is the genus 

 Corynorhinus, which is characterized by having cheeks 

 with two large excrescences, ears excessively large, — 



• 2—2 



an inch high ; teeth 36, mcisors ^^^g. 



The present genus Nycticeius was formerly included 

 in the genus Atalapha. At present, however, it is a 

 separate genus with these characteristics : teeth 30 ; 

 molars ;r^; upper incisors small, wings naked and in- 

 terfemoral membranes nearly so. 



Atalapha has thirty-two teeth, molars ^, upper 

 incisors stout, interfemoral membranes h'airy abovC; 

 and wrings with furry patches. North Arnerigan 



