CLASS 1. MAMMALIA: ORDER 3. CHEIROPTERA. 
135 
VESPERTILIO LIMNOPHILUS. 
small and familiar European species, which the English call Flitter-mouse. It lives in towns and 
villages, and greatly resembles the common species of New England and the Middle States. 
The V. auritus, or Lop-eared Bat, is a small species found in France, which lives apart in 
gardens and inhabited places. The V. murinus is a large species, found in Europe and also in 
Algeria. Other known species are as follows : V. Besckteinii, V. NaUereri, V. mystacinus, V. emar- 
ghiatus^ and V. limno'pMlus, besides some others not well established. Several Australian species, 
not well defined, are omitted. 
The Big-eared Bat, V. macrotis, the V. Euryotis, V. Blossevillei, V. CMliensis, V. Brasiliensis, 
V. hypothrixj V. Isidori, V. lepidus, and the Plecoius volatus^ or V. Maugei^ are South American 
species. 
nOAKY BAT. 
The bats of our Middle States are all of the genus Vespertilio. In winter they retreat to holes 
in trees and rocks, and become perfectly torpid. They bring forth three to four at a birth. The 
New York Bat, V. Novehorctcensis, is the most common species, extending its range from Massa- 
chusetts to Carolina, and from the Atlantic to the Rocky Motmtains. It is covered with tawny 
hair, varied with white on the sides. The length of the body is three to four inches. 
^ The Hoary Bat, F. pruinosus, is somewhat larger and more robust ; the head is yellowish, and 
