516 DUNN. 



Diagnosis: A salamander with toes 4-5; vomerine teeth in two 

 short widely separated series between the nares; flat tail; no labial 

 folds; no horny covering to palms and soles. 



Description: U. S. Nat. Mus. No. 14365, adult male, Kopal, 

 Semiryechensk Gov.; 12 costal grooves; appressed toes meeting; 

 head width 4f in length from snout to vent; head length 3 in length of 

 body; head oval; eye as long as its distance from tip of snout; out- 

 line of upper jaw straight as seen from side; lower eyelid fitting under 

 upper in front and behind; 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; a fold of skin on sides between insertions of limbs; limbs well 

 developed; fingers 2, 3, 4, 1 in order of length; toes 3, 4, 2, 5, 1 in 

 order of length; fingers and toes flattened towards tip; tail longer 

 than body, flattened considerably; vent a longitudinal slit; vomerine 

 teeth beginning behind inner edge of nares, a series of 6 teeth curving 

 forward and in to level of middle of nares, series separated from its 

 fellow by width of nares ; color (faded) light brownish gray, with a few 

 black dots on dorsal surface; total length 104 mm., head 14, body 41, 

 tail 49. 



Variation: A nearly transformed larva, Mus. Comp. Zool. No 

 1964, same locality; 13 costal grooves, one costal fold between ap- 

 pressed toes; labial folds on upper and lower jaw; otherwise like 

 adult; total length 97 mm., head 11, body 40, tail 46. 



According to Strauch (1870) the vomerine teeth converge forward 

 in the young, but are quite transverse in the adult. 



He gives measurements of a series from Kopal and from Kuldja 

 in Chinese Turkestan, which I here reproduce. 



Apparently the relative length of the tail increases with age. 

 Habits: Snitnikov (1913) has a paper on the habitat and habits of 

 Ranodon from which I emote the following. 



