﻿344 HALLOWELL ON THE 



of red; tail cyclo-tetragonal at base, shorter than in glutinosus; 15 costal folds ; 20 

 folds upon the tail. Length 2 inches 8 lines. 



Habitat. — Massachusetts, Pennsylvania, Virginia, abundant near Philadelphia, 

 Cresson, Pa. ; a land animal, found under stones and logs of wood. 



29 specimens in Mus. Acad. Nat. Sci., presented by Mr. F. Hill, Dr. Pickering, 

 Dr. Bache, (Green collection.) 



PLETHODON NIGER. 



Char. — Black or dark brown above, with numerous black spots; black upon the 

 sides, with numerous small white spots thickly agglomerated ; abdomen purplish, 

 more or less marbled with black and grey ; throat, neck and abdomen thickly spotted 

 with minute white spots ; tail of moderate length, somewhat longer than head, neck 

 and body, in some specimens a little shorter, rounded at base, compressed at tip. 

 Length 4 inches 4 lines. 



Habitat. — Very common in Massachusetts, Pennsylvania, (abundant in the neighbor- 

 hood of Philadelphia,) Cresson, North Carolina, Ashville, .Georgia, Louisiana. 



40 specimens presented by Dr. Bache, (Green collection,) Dr. Hallowell, Dr. Leidy, 

 Dr. Uhler, Dr. "Wilson. 



Plethodon auriculatum. 



Char. — Head small, with a reddish brown spot, near the ear ; body cylindrical with 

 a series of minute reddish brown spots on each side ; tail rounded at base, compressed 

 posteriorly (in alcohol) ; sphenoidal less thickly agglomerated posteriorly than in 

 other species of Plethodon. Length 5 inches. 



Habitat. — Biceboro', Georgia, South Carolina. 



3 specimens in Mus. Acad., presented by Dr. Jones and Prof. Holbrook. 



ANEIDES, Bawd. 



Char. — Head large, swollen at the temples, snout angular, eyes very prominent, 

 tongue obcordate, attached in front, and along the middle, sides quite free, free also 

 posteriorly, but less so than at the sides, maxillary teeth greatly developed, especially 

 those of the lower jaw, which are spear-shaped, sharp pointed, more or less convex 

 anteriorly, concave posteriorly, with a ridge in the middle, about three-fourths of a 

 line in length ; transverse palatine teeth in two small incurvated rows behind the 

 internal nares, meeting posteriorly ; sphenoidal teeth thickly set in two rows, sharp 

 pointed, closely in contact in anterior third, posteriorly a very narrow interspace not 

 enlarged behind ; extremities slender ; fingers and toes lightly compressed, free ; first 

 finger much shorter than fourth, second than third ; first toe much shorter than fifth, 

 second than third, third and fourth of equal length ; skin smooth ; costal grooves well 



