BATRACHIANS OF THE VICINITY OF NEW YORK 165 
DESCRIPTIVE LIST OF THE SALAMANDERS. 
FIG. 2. THE MARBLED SALAMANDER 
From specimen in New York Aquarium 
The Marbled Salamander, Amblystoma opacum Gravenhorst 
(Fig. 2), is of moderate size and stout form, with flattened tail, 
which is thick at the base. General color slaty-black,  yarplea 
with large elongated spots or blotches of grayish-white Salaman- 
on the back and head. Some of the spots run together, der. 
producing a marbled appearance, a character which occurs on 
the back of many specimens. The spots are regularly disposed 
as half-rings on the upper surface of the tail, producing a banded 
appearance. Beneath, this species is a uniform bluish-black. It 
may be distinguished from the other local representatives of the 
genus by its grayish-white markings, the other species possessing 
yellowish markings. Total length, 4} inches; length of tail, 2 
inches. 
Range: The eastern and central portions of North America. 
Local Distribution: General in this vicinity, but not common. 
