64 REPORT OF NEW JERSEY STATE MUSEUM. 
Jaculus hudsonius Abbott, Cook’s Geol. of N. J., 1868, p. 757. 
Zapus hudsonvus Abbott, A Naturalist’s Rambles, 1885, p. 450. 
—Rhoads, Mam. Pa. and N. J., 1903, p. 109.—Rhoads, Proc. 
Acad. Nat. Sciences Phila., 1897, p. 28. 
Zapus hudsonius americanus Rhoads, Mam. of Pa. and N. J., 
1903, p. IIO. 
Zapus insignis Miller. 
Woodland Jumping Mouse. 
PLATE, 20, Fic. 1. 
Length 9.80 inches. Larger than the meadow species, less 
dusky above, sides inclining to rich orange, underparts snowy 
white, tail with a distinct white tip. Molar teeth only three on 
each side, while in the other species there are four. 
This is a larger edition of the preceding, restricted to the cold 
boreal forests, though from its small size it can often exist 
where larger animals have been compelled to retreat owing to the 
depredations of the woodsmen. 
This jumping mouse was only made known to science in 1891 
by Mr. G. S. Miller, Jr., who discovered it in New Brunswick. 
To that indefatigable field naturalist, Samuel N. Rhoads, we are 
indebted for adding it to the fauna of New Jersey. In May, 
1893, he secured four specimens in woods bordering Lake Hopat- 
cong, near Nolan’s Point (Proc. Acad. Nat. Sciences Phila., 
1897, p. 29). These are now in the collection of the Philadelphia 
Academy. 
The species, doubtless, occurs at other points in the northern 
tier of counties. 
Zapus insignis Rhoads, Mam. Pa. and N. J., 1903, p. 112.— 
Rhoads, Proc. Acad. Nat. Sci. Phila., 1897, p. 29. 
Family MURIDZ. 
Rats, Mick AND LEMMINGS. 
This family of rodents comprises an enormous number of 
species scattered over nearly every part of the world. They are 
