140 



BULLETIN 58, ITNITED STATES NATIONAL MUSEUM. 



halfway between eye and tip of snout; interorbital space much nar- 

 rower than upper eyehd; tympanum distinct, about three-fourths 

 the diameter of the eye; fingers tapering, not chhited at tips; second 

 finger shorter than first, about ec[uahng fourth; toes nearly entirely 

 webbed, not dilated at tips; a rather wide flap of skin bordering the 

 outer side of the fifth toe, the flap being particularly wide along the 

 metatarsal bone; subarticular tubercles moderate; inner metatarsal 

 tubercle small, its length scarcely one-half the diameter of the eye; 

 no outer tubercle; a tarsal fold; tibio-tarsal joints reach eyes when 



Figs. 127-131.— Rana tigerina. Nat. size. 127, top of head; 128, side of head; 129, open mouth; 

 1.30, underside of hand; 1,31, underside of foot. No. 7435, U.S.N.M. 



hind legs are stretched forward along the side and meet when bent 

 at right angles to the axis of the body; skin above with numer- 

 ous, very distinct, longitudinal, short, glandular ridges, but no trans- 

 verse fold, and no dorso-lateral fold; a well-marked fold from pos- 

 terior corner of eye around upper edge of tympanum to above fore 

 leg. Color brown above with numerous roundish dark spots; no 

 vertebral light line; lower surface whitish, with brownish marblings 

 on throat and chest; thighs strongly marbled with dark brownish. 



