148 VERTEBRATE ANIMALS OF THE UNITED STATES 



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

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



P. jordani Blatchley. Similar to P. mekalfi; 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. vekicidimi (Cooper) {P. intermedins Baird). Similar to P. 

 cinereus in color; length 90 mm.; tail 38 mm.; costal grooves 14: Cali- 

 fornia to Vancouver Island. 



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

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



P. vandykei Van Denburgh. Similar to P. inlermedius, 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. scntatum (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 : 4 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 

 grooves 1 1 ; parasphenoid patches of teeth diverging posteriorly, con- 

 fluent anteriorly: Pacitic slope from Los Angeles to Puget Sound. 



E. croceater (Cope). Body large, black in color with large yellow 

 dorsal spots; bright orange beneath; costal grooves 13; length 145 mm.; 

 tail 87 mm. : southern California. 



6. Aneides Baird. Similar to Plethodon, but differs in that there 

 is but one premaxillary and the maxillary and mandibular teeth are few 

 in number and confined to the anterior portion of the arch; vomerine 

 teeth on a ridge between the internal nares: 4 species. 



Key to the Species of Aneides 



ai On the Pacific slope. 



bi Teeth not flattened; color black A. JJairpunctatus. 



bo Teeth flattened. 



