NORTH AMERICAN BATRACIIIA AND REPTILIA. 25 



and tibia about equal, and one-half length of body ; L. three 

 inches. Eastern United States. 



72. JR. catesbiana., Schaw. Bull Frog. Above greenish of 

 varying shades, marked with numerous small dark spots; head 

 usually bright, pale green; extremities blotched; posterior 

 surface of thighs mottled with blackish ; below yellowish-white, 

 often clouded with dusky; cutaueous folds none or incon- 

 spicuous; head ver}' large, as broad as long; tympanum large; 

 interval between patches of palatine teeth comparatively large; 

 toes broadly webbed to the base of last joint; femur about 

 equal to tibia, and less than one-half total length ; L. live inches. 

 Eastern United States. 



73. a. temporaria., subsp. sylvatica^ LeConte, Wood 

 Frog. Above pale reddish-brown; a dark brown vitta, narrow 

 before and broad behind, from snout to near shoulder, bordered 

 below by a yellowish white line; a black spot usually at base of 

 arms; flanks mottled in front; extremities with transverse dark 

 bars above; below white, sometimes mottled on anterior surface; 

 head small, pointed; tympanum small; a narrow cutaneous fold 

 on each side of back; femur and tibia about equal, the latter 

 considerably more than one-half total length; L. one and three- 

 eighths inches. Eastern region. 



74. Jx. teTTiporaria, subsp. cantahrigensis., Bd. General 

 appearance and size of preceding; light colored lateral folds 

 and a dorsal line from snout to arms; sometimes dark spots 

 above; a narrow light line along posterior face of thighs; tibia 

 about one-half length of body, Canada to Rocky Mountains. 



