STRIPED-BACK SALAMANDER. 727 
Genus SPELERPES. Rafinesque. 
Vomerine teeth in a transverse row, behind the inner nares, interrupted medially ; 
sphenoidals in two elongated groups ; separated from each other, usually narrower in front 
and diverging behind ; tongue boletoid; head short, depressed ; body cylindrical, slender; 
digits free, four in front and five behind; tail long, tapering and distally compressed. 
Body with distinct spots or bands. @. 
Body spotless, or with minute dots; extralimital, Arkansas. . §. MULTIPLICATUS. 
a. Costal furrows 15-17. 0. 
a. Costal furrows 14 or less. ¢. 
b. Color in the main red. : : 5 : 0 : S. RUBER. 
b. Color cinereous and white, with black ; extralimital, Georgia. 
S. MARGINATUS. 
e. Color above yellow. /f. 
¢. Color above cinereous, lines black. 3 : : é . §. BILINEATUS, 
ce. Color above brown. : : ; . : é S. PORPHYRITICUS. 
f. With dark spots; no vertebral line. : : é . §. LONGICAUDUS, 
f. With black vetebral line; extralimital, North Carolina, South Carolina, 
and Georgia, to Alabama. : : : ¢ . §. GUTTOLINEATUS. 
SpELERPES BILINEATUS Green. 
Striped-back Saiamander. 
Salamandra bilineatus, GREEN, HOLBROOK, HARLAN, Cuvier, DEKAY. 
Salamandra flavissima, HARLAN, HOLBROOK. 
Salamandra cirrigera, GREEN, HARLAN. 
Spelerpes cirrigera, BAIRD, GRAY, HALLOWELL. 
Bolitoglossa bilineata, DUMERIL and BIBRON. 
Spelerpes bilineatus, BarRD, ALLEN, COPE, JORDAN. 
Color above cinereous, with two or three longitudinal black lines ; ver- 
tebral line narrow, but broader in front, sometimes nearly or quite 
effaced ; below yellow or yellowish white; color very much obscured by 
alcohol; head oval; eyes ovate ; irides yellow; postorbital and parotid 
folds distinct, gular only marked by a cicatrix ; costal grooves fourteen, 
in most specimens indistinct; limbs slender; digits long, excepting the 
first and last ; tail nearly or quite as long as the body and sometimes 
longer. Length, 22 inches; tail, 1} inches; head to gular fold, } inch ; 
breadth of head, 3-16 inch. 
Fig. 8.—Spelerpes Habitat, Maine, Massachusetts, New York, Pennsylvania, Georgia, 
Le ois mouth Porida, Louisiana, Ohio, and Wisconsin. 
Common. Lives under stones and decaying matter in woods and moist 
places, especially along the banks of brooks and in shallow water, and is 
very active. 
Var. cirrigera seems to differ from this mainly in the possession of two 
parbels between the nostrils and lip in the male ; they are not present 
in the female. Green says, “ when these animals were alive the 
