1897.] Zoology. 447 
myscus aureolus, being an inhabitant of damp thickets. Lepus sylvaticus, 
Peromyscus leucopus, Blarina carolinensis and Scalops aquaticus are 
found nearly everywhere in woods and fields both, except in the more 
watery situations, where only aquatic species occur ; Microtus pinetorum 
is found in the drier woods and fields; Sigmodon hispidus in the drier 
fields, but notin woods. Mus musculus, Reithrodontomys lecontei, Blarina 
parva and Microtus pennsylvanicus occur in open fields and the edges 
of the marshes, the last species penetrating the marshes much farther 
than the others. Oryzomys palustris, Fiber zibethicus, Lutreola lutreo- 
cephalus and Lutra hudsonica are all more or less aquatic, being found 
mainly or entirely along streams, or in the wet marshes. Of the bats, 
Vesperugo carolinensis is the common bat of the low grounds, and 
Atalapha borealis of the uplands. 
The species observed here, are as follows: 
1. Didelphis virginianus. Opossum. Tolerably common. I once 
took a litter of fourteen young ones, August 4, 1891. 
2. Lepus sylvaticus. Cotton-tail Rabbit. Common. The young of 
this species are blind at birth. 
3. Mus alexandrinus. Roof Rat. The long-tailed, white-bellied Roof 
Rat is common here, around houses and farm buildings, but is not found 
away from such places (Mus decumanus and Mus rattus I have never 
observed at Raleigh). 
4. Mus musculus. House Mouse. Common in houses, and irregu- 
larly distributed throughout all open fields. 
Sigmodon hispidus. Cotton Rat. Abundant in the upland fields, 
particularly in gardens and in grain and clover fields. By far the most 
diurnal in its habits of any of our mice. 
6. Peromyscus aureolus. Golden Mouse. Common in damp thickets. 
Nests in reeds, bushes or vines. Our only arboreal mouse. 
7. Peromyscus leucopus. White-footed Mouse. Abundant every- 
where, except in the wet marshes. Nests in the rotten roots of old 
stumps below ground, or in hollows of dead stumps above ground. 
8. Oryzomys palustris. Tolerably common in the wet marshes and 
cat-tail swamps. The nest is built in a bush or bulrush tussock often 
fifty yards from land. 
9. Reithrodontomys lecontei. Harvest Mouse. Abundant in the open 
fields and on the edges of marshes, but is not found in woodlands. The 
few nests I have found have been in bulrush tussocks in rather damp 
situations. 
10. Microtus pinetorum. Pine Mouse. Fairly common, found in the 
drier parts of woods and fields, and is more subterranean in its habits 
