AMPHIBIANS 159 



tail 67 mm.; costal grooves 14; vomerine teeth extending laterally 

 beyond the internal nares: eastern and central States and New York; 

 westward to Wisconsin and central Texas; southward to the Gulf 

 States; terrestrial; common in upland districts. 



P. yonahlossee Dunn. Similar to P. glutinosus, but with a chestnut 

 red dorsal coloration and with paired red spots: mountains of North 

 Carolina and Virginia. 



P. metcalfi Brimley. Similar to P. glutinosus, but slenderer; color 

 plain plumbeous, paler beneath; length 108 mm.; tail 53 mm.; 

 costal grooves 14; vomerine teeth in 2 short curved transverse rows: 

 mountains of North Carolina; often very common. 



P. wehrlei Fowler & Dunn. Similar to P. metcalfi; dorsal surface 

 with paired spots; costal grooves 17; toes webbed: central and western 

 Pennsylvania and West Virginia. 



P. shermani Stejneger. Similar to P. metcalfi, but with red legs; 

 length 104 mm.; tail 56 mm.; costal grooves 14: western North Carolina. 



P. jordani Blatchley. Similar to P. metcalfi-; color black, with 

 a red or yellow stripe on the side of the head between the eye and the 

 gular fold; legs sometimes dotted with red; costal grooves 14: moun- 

 tains of Tennessee and North Carolina. 



P. intermedius Baird. Similar to P. cinereus in color; length 90 

 mm.; tail 38 mm.; costal grooves 14: California to Vancouver Island. 



P. elongatus Van Denburgh. Similar to P. intermedius, but with 16 

 costal grooves; length 117 mm.; tail 58 mm.: northern California. 



P. vandykei Van Denburgh. Similar to P. intermedius, but stouter 

 and with 13 or 14 costal grooves; back clay-colored, dotted with black; 

 lower surfaces black; length 116 mm.; tail 56 mm.; toes partly webbed: 

 western Washington. 



4. Hemidactylium Tschudi. Like Plethodon, but with 4 toes on the 

 hind foot: i species. 



H. scutatum (Schlegel). Body small, cylindrical, dark chestnut 

 above, white beneath with large black spots; tail with a basal constric- 

 tion; length 80 mm.; tail 46 mm.; costal grooves 14: eastern and central 

 States and Canada; northward into Massachusetts; westward into 

 Michigan, Illinois and Arkansas; southward into the Gulf States; 

 terrestrial; locally common. 



5. Ensatina Gray. Similar to Plethodon, but with a basal constric- 

 tion of the tail and with 2 plantar tubercles on the palm: 3 species, i {E. 

 platensis) in Uruguay and Argentina, 



E. eschscholtzi Gray. Body depressed, brown or orange in color; tail 

 short and slender; limbs long; length 115 mm.; tail 50 mm.; costal 



