HYNOBIIDAE. 477 



distance from tip of snout; lower eyelid fitting under upper in front 

 and behind ; upper jaw straight as seen from side ; angle of jaw back 

 of hind angle of eye; a groove from eye to gular fold; a groove from 

 this down behind angle of jaw; limbs well developed; fingers 2, 3, 4, 1 

 in order of length; toes long, 3, 4, 2, 1, 5 in order of length; a tubercle 

 at base of first finger and toe; tail longer than body, flattened, finned 

 above; vent a longitudinal slit; vomerine teeth in two arched series 

 convex forwards, about 17 in series, beginning behind outer edge of 

 nares, curving forward and in to meet its fellow, not curving back at 

 all in median line; grayish brown, a darker lateral stripe, lighter below. 



Total length 103, head 15, body 43, tail 45. 



Variation: Cal. Acad. Sci. No. 35927, same data, recently trans- 

 formed male; head width 5-g- in length from snout to vent; head length 

 3| in length of body; angle of jaw under hind angle of eye; tail 

 shorter than body; vomerine teeth in two arched series between nares, 

 13 teeth in series, on right side a row of 5 teeth behind nares; dark 

 brownish above, lighter below. 



Total length 96, head 12, body 44, tail 40. 



A recently transformed female (?) Mus. Comp. Zool. Xo. 5122, 

 Yezo, is similar to the described specimens; the vomerine teeth are in 

 two arched series between the nares, about 12 teeth to a series, series 

 meeting in median line, not extending back of nor in front of nares. 



Total length 89, head 13, body 39, tail 37. 



Larvae: These are brownish above with black spots; on the tail 

 there are a few circular black spots; sides light with dark marbling; 

 belly light; dorsal fin to middle of back; no fold of skin along leg. 



Cal. Acad. Sci. Xo. 25982-9, Sapporo, Yezo. 



Nemuro, Yezo, Cal. Acad. Sci. 25990, total 41, head 7, body 19, 

 tail 15. 



This specimen has 5 toes on one side and 4 on the other. All these 

 larvae have the appressed toes meeting and 12 costal grooves. 



An adult male, U. S. Nat. Mus. No. 04902, Kutara Lake, Ilmri 



