128 



NORTH AMERICAN, FAUNA 66 



struct nests of grass and leaves under logs or occasionally in a clump 

 of shrubs a few inches above the ground. 



Krutzsch (1954, p. 428), citing various investigators, lists the fol- 

 lowing foods consumed by these mice: Insects, berries, seeds, nuts, 

 fruits of various kinds, and roots. It has been noted that meadow 

 jumping mice are highly insectivorous (Quimby, 1951, pp. 85-86). 



According to Krutzsch (1954, p. 429), meadow jumping mice com- 

 mence to breed shortly after they come out of hibernation, and the 

 breeding season is prolonged until just before they reenter hiberna- 

 tion in the autumn. There are probably two litters produced each 

 breeding season, and the number of young per litter varies from three to 

 eight. Bailey (1923, p. 120) reported a specimen from Sandy Springs, 

 Montgomery County, taken on 19 May 1906, that contained six large 

 embryos. The gestation period is approximately 18 days. 



Specimens examined. — Allegany County: Dans Mountain, 1. Charles 

 County: Marshall Hall, 1; Newport, 2. Garrett County: Cunningham 

 Swamp, 4; Finzel, 1. Montgomery County: Cabin John Bridge, 2; 

 Kensington, 1 ; Rockville, 2 miles W, 1 ; Sandy Springs, 2 ; Seneca % 

 mile N, 1 ; Seneca, 3 miles W, 2. Prince Georges Coumty: Branchville, 

 1; Laurel, 8; Patuxent Research Center, 2; Tuxedo, 1. Worcester 

 County: Ocean City, 5 miles S (Assateague Island), 1. District of 

 Columbia: 7. 



Other records and reports. — Baltimore County: Patapsco State 

 Park (Hampe, 1939, p. 7). Montgomery County: Forest Glen (one 

 seen by G. S. Miller and reported by Bailey, 1896, p. 98). Prince 

 Georges County: College Park (Krutzsch, 1954, p. 439) . 



Remarks. — According to Krutzsch (1954, p. 439), specimens from 

 Maryland, Virginia, and North Carolina are more nearly average 

 representatives of the subspecies americanus than are those from the 

 region of the type locality. 



WOODLAND JUMPING MOUSE 

 Napaeozapus insignis insignis (Miller) 



Zapus insignis Miller, Amer. Nat., 25 : 742, August 1891. 



Type locality. — Restigouch River, New Brunswick, Canada. 



General distribution. — Eastern Canada, from Nova Scotia, New Brunswick, 

 and Quebec south of St. Lawrence River, south into northeastern Ohio, northern 

 West Virginia, and western Maryland. 



Distribution in Maryland. — Allegheny Mountain section ; may also 

 occur in the Ridge and Valley section, but has not been reported from 

 there as yet. 



Distinguishing characteristics. — Teeth 1/1, 0/0, 0/0, 3/3, = 16; closely 

 resembles the preceding species, but somewhat larger in size; coloration 



