AMPHIBIANS AND REPTILES. 63 
that it is the only one of our eastern salamanders which attempts 
self-defence as it snaps fiercely, but harmlessly, and throws its 
body into contortions. This is not altogether true as I have seen 
Plethodon glutinosus attempt to bite a little when captured in 
the hand. 
Gryinophilus porphyriticus Abbott, Nat. Rambles, 1885, p. 
477- 
Pseudotriton salmonea Abbott, Geol. N. J., 1868, p. 803. 
Genus SPELERPES Rafinesque. 
The Long Tailed Salamanders. 
Key to the species. 
a. Vomerine teeth not continued posteriorly to parasphenoid patches, nor 
exteriorly beyond nares; costal grooves 13 or I4. 
b. Tail short, or about equal to rest of body. BISLINEATUS 
bb. Tail long, or about 1% to twice as long as rest of body. LONGICAUDA 
aa. Vomerine teeth in a continuous series posteriorly with those on 
parasphenoid, and originating behind nares; costal grooves 15 or 16. RUBER 
Spelerpes bislineatus (Green). 
PLATE 12, 
Two Lined Salamander. 
Head 8; depth 17%4; width of head 13% in its length from tip 
of snout to gular fold; length of mouth 2%; interorbital space, 
measured from eye-sockets, 5; width of mouth 2; fore limb 
about 1144; hind limb a trifle more than head; tail measured 
from just behind vent about once and width of mouth in length 
of head and trunk. Body somewhat depressed above and below, 
slender, elongated, and otherwise more or less cylindrical with 
convex edges. Surface rounded, smooth and convex. Trunk 
not swollen, slender, hardly constricted either in front or behind. 
Costal grooves not especially pronounced, rather obscure on upper 
