﻿UADUCIBRANCHIATE URODELE BATRACHIANS. 343 



1838. Salamandra glutinosa, Holbrook, N. American Herpetelogy, 1st ed., vol. 

 ii., p. 129, pi. 30. 



1842. Salamandra glutinosa, Holbrook, N. American Herp., 2d ed., vol. v., p. 39, 

 pi. 10. 



Salamandra granulata, Holbrook, vol. v., p. 54, (var.) 



1840. Salamandra glutinosa, Storer, Rep. Reptil. Mass., p. 252. 



1842. Salamandra glutinosa, Dekay, Natural History of New York, Reptiles, 

 p. 81, pi. 17, fig. 142, (very young.) 



1818. Salamandra variolata, Gilliams. 



1827. Salamandra cylindracea, Harlan, Journal Academy Nat. Sci., vol. v., p. 328. 



1835. Salamandra cylindracea, Harlan, Med. and Phys. Researches, p. 94. 



1835. Bonap. Fauna Italica ii., p. 139 ; Fitzinger, Syn. Rept., p. 32. 



1827. Salamandra Jeffersoniana, Contributions to Maclurian Lyceum, No. 1, 

 p. 4, pi. 1, fig. 1. 



1850. Ambystoma Jeffersoniana, Baird, Journal Academy Nat. Sci., vol. i., p. 283 ; 

 {exclus. Salamandra Jeffersoniana, Schlegel; Ambystoma ingens.) 



1850. Plethodon glutinosum, Gray, Cat. Br. Mus., Amphib., p. 39. 



1854- Plethodon variolosum, Dum. & Bib., Erpet. generale, t. ix., p. 83. 



1854. Oylindrosoma glutinosum, Dum. & Bib., Erpet. generale, t. ix., p. 80. 



Gen. Remarks. — The coloration varies somewhat in different specimens. Of 25 

 now before me, recently captured at Altoona, Pa., about 225 miles from Philadelphia, 

 by Dr. Wilson, Dr. Leidy and Mr. Conrad, I find that the young are much more 

 thickly spotted than the adults, which above present the confluent appearance of the 

 spots upon the sides ; the abdomen and under part of the tail are bluish, sometimes 

 very minutely spotted with white, that part of the tail usually so ; the upper part of 

 the head is generally free from spots, but a large one may often be seen upon the 

 skin ; palms of soles of feet brick-dust red. Some of these specimens have a decidedly 

 granulated appearance, and are covered all over upon the back with very minute 

 white spots interspersed between the larger ones. The specimens from South Caro- 

 lina and Georgia present no differences in the coloration ; but among those of the 

 former is a marked variety noticed by Dr. Holbrook, entirely black above without 

 spots ; chin and throat yellowish ; abdomen dark brown, sometimes minutely white 

 spotted. 



Plethodon erythronotus. — (Red-backed Salamander.) 



Char. — Body cylindrical, with a broad red,* reddish brown or dusky yellow, or 

 pink colored vertical band, extending from the occiput to the end of the tail ; flanks 

 cinereous ; abdomen and under parts of extremities greyish ; chin white with a tinge 



* This reddish band is often marked with brown. 



