628 



REPORT OF STATE GEOLOGIST. 



ties are Franklin County, Indianapolis, Michigan City. In the 

 northern part of the State it seems to be one of the commonest bats. 

 It has been taken frequently in Chicago and there are several 

 in the collection of the Chicago Academy of Sciences. 



Habits —The writer has never made the personal acquaintance 

 of this bat. It is a tree dweller and is not known to winter in caves. 

 It is known to migrate southward in winter and probably does not 

 stay in the southern half of this State during the summer. 



Fig. 29. — Skull of Lasionyctcris noctivagans : a, lateral view ; b, dorsal view. 

 After Miller. N. Am. Fauna No. 13, Bureau of the Biol. Sur., U. S. Dept. of 

 Agri. 



Dr. Merriam, in his "Mammals of the Adirondacks, " says of it: 

 "Like many other bats it has a decided liking for waterways, 

 coursing up and down streams and rivers, and circling around 

 lakes and ponds. At some places its habit of keeping directly over 

 water is very marked. * * * Several that were wounded and fell 

 into the water at a distance of fifteen or twenty feet from the bank, 

 swam ashore. They swam powerfully and swiftly, for the current 

 was there quite strong and would otherwise have carried them down 

 stream. ' ' 



Dr. Merriam tells about finding thirteen young in a deserted 

 crow's nest. They were naked and the eyes were closed. The young 

 are generally two in number and are born about the first of July. 

 They commence to fly when three weeks old. The same author gives 

 an account of the finding of an immense colony of these bats in a 

 hollow tree in the edge of Tjake Uinl)ng()g on June 18, 1880. 



