44 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



taincd {\uvc and ono-third times in the distance from gular fold to 

 anterior angle of vent; adpressed limbs do not meet by a distance of 

 two costal folds; fore legs slender, the four fingers short, but well 

 developed, each with a raised, compressed, brownish black claw; 

 fourth finger slightly longer than first, third longest; hind legs strong 

 and stout; toes depressed, widened at base, each with a black claw 

 like the fingers; first finger very short, fourth longest, fifth equaling 

 third; a thick dermal expansion from the outer side of fifth finger 

 along the outer side of the foot and tibia, giving the foot a very wide 

 under surface; no tubercles; tail long, longer than head and body, 

 nearly cylindrical in the basal half, then gradually more and more 

 compressed to the end, which is rounded; 13 costal grooves wdiich are 

 rather indistinct ; a flat parotoid gland on the side of the neck, bordered 

 above and behind by a groove which begins behind the eye and joins 

 the strong gular fold behind the parotoid ; a shallow groove along the 

 median line of upper neck and anterior half of back; vent arrow- 

 shaped, the lips of the obli,que anterior slits forming the arrows' head 

 distinctly swollen. Color (in alcohol) : top of head, the whole median 

 portion of upper neck and back, as well as the upper edge of the tail, 

 ''wood brown," sprinkled more or less with blackish brown, most 

 densely on the head; sides of neck, body, and tail blackish brown, 

 the upper outline agamst the pale band of the back irregular, but 

 very distinct, the lower outline gradually merging into the pale color 

 of the under surface; legs above dark brown, like the lower portion of 

 the flanks, and, like these, with irregular roundish spots of pale wood- 

 brown. 



Dimensions. 



mm. 



Total length 161 



Tip of snout to gular fold 16 



Gular fold to anterior angle of vent 53 



Anterior angle of vent to tip of tail 02 



Width of head 10 



Fore leg 18 



Hind leg 21 



Height of tail a head-length from vent 8 



Width of tail a liead-length from vent 7 



The adult breeding female (U.S.N.M. No. 34245; Hakone Lake; 

 July, 1898; Owston, collector) differs from the male chiefly in the 

 shorter tail and the slenderer hind legs, which, moreover, are devoid 

 of the lateral tarso-tibial enlargement. The vent is also of a some- 

 what different aspect, inasmuch as the lateral oblique folds, which in 

 the male converge at the anterior end, in the female meet at the mid- 

 dle of the median cleft; the lips of the vent anterior to the lateral folds 

 are much swollen; all the toes provided w^ith black nails. 



