14. ANArOES. 15. PLEIHOBON. 53 



a-b, c-d. Adult, hgr., & yg. California. 



e. Adult. Farallone Islands. Hr. Gruber. 



/. Hgi". Monterey. (Type ot~ Amby- 



g. Skeleton. California. 



stoma ptmctulatum.) 



2. Anaides ferreus. 

 Anaides ferreus, Cope, Proe. Ac. Philad. 1869, p. 109. 



Smaller and more slender than the last. The parasphenoid 

 patch does not extend quite forwards to the middle of the orbits, 

 and is much flatter and wider anteriorly than in A. lugubris. Body 

 slender, cylindric. Limbs, and especially digits, slender ; adpressed 

 to the side they fail to meet by the length of the fingers ; thumb 

 not distinct. Fourteen costal grooves. Sides and nape greenish grey ; 

 top of head and dorsal region behind in the form of a serrate band, 

 with the tail black ; below yellowish brown, unspotted. Total 

 length 90 millim. 



Oregon. 



15. PLETHODON. 



Plethodon, Tschudi, Batr. p. 92 ; Baird, Journ. Ac. Philad. (2) i. 



p. 282 ; Gi-ay, Cat. p. 38 ; Bum. ^ Bibr. ix. p. 82 ; Cope, Proc. 



Ac. Philad. 1869, p. 99 ; Strauch, Salam. p. 69. 

 Sauropsis, FUzing. Syst. Pept. i. p. 33. 

 Cylindrosoma, part., Dum. Sj- Bwr. p. 76. 

 Ensatina, Gray, Cat. p. 76. 

 Heredia, Girard, Proe. Ac. Philad. 1856, p. 140 ; Strauch, Salam. 



p. 76. 

 Stereochilus, Cope, I. c. p. 100. 

 Urotropis, Espada, An. Soc. Esp. iv. p. 70. 



Tongue large, attached along the median line, extensively free 

 laterally and more or less behind. Palatine teeth in two more or 

 less distinctly arched series behind the choanse; parasphenoidal 

 teeth in two elongate patches. Toes five. Tail subcylindrical or 

 compressed. 



North America ; (one species in the valley of the Eio de la Plata ?). 



Synopsis of the Species. 



I. Parasphenoid patches well separated ; tongue free in its posterior 

 half. 

 11 costal grooves; the length of the 



parasphenoid patches equals the dis- 

 tance from their anterior border to the 



intermaxillary teeth; uniform brown . 1. oregunensis, -p. 54. 

 11 costal grooves; the length of the 



parasphenoid patches equals about 



the distance from their anterior border 



to the choanse; brown above, with 



yellow spots 2. plaUnsis, p. 55. 



