pon. 26 BARBOUR — ASIATIC AMPHIBIA AND REPTILIA 67 
bars, but less narrow laterally than dorsally, white with a slight brownish 
tinge. Ventral surface ivory white, with black markings of the bars; 
these often end abruptly at the median line. The black blotches are 
roughly alternate. 
Types, no. 7101, Mus. Comp. Zoél., two specimens, each about 20 em. 
long, from Mt. Wuchi, central Hainan. Taken by one of Mr. Owston’s 
Japanese collectors. 
This strongly differentiated species shows a probable relationship 
to both N. tigrina and N. piscator. 
Cope’s T'rimerodytes balteatus (Proc. Acad. Nat. Sci. Phila., 
1894, p. 426) probably represents an abnormal Natrix, which, 
however, cannot be identified with this species. 
Natrix stolata (Linné). 
Linné, Syst. Nat., 1758, I, p. 219. 
Stejneger, Herp. of Japan, 1907, pp. 280-283. 
Two specimens, one from Ting an, Hainan, and one from Mt. 
Arizan, central Formosa; 19 scale rows in each. 
Pseudoxenodon stejnegeri Barbour. 
Pl. VU, fig. 8. 
Barbour, Bull. Mus. Comp. Zodél., Vol. 51, 1908, pp. 317-318. 
Rostral just visible from above; internasals shorter than prefrontals; 
frontal almost one and one half times as long as broad, shorter than dis- 
tance to tip of snout, much shorter than parietals; loreal as long as deep; 
two preoculars; three postoculars; temporals 2 + 2; eight upper labials, 
fourth and fifth entering orbit; five lower labials in contact with the 
anterior chin shields, which are very nearly the same size as the posterior. 
Eleven dorsal rows of scales keeled, only the dorsal five strongly; scales in 
nineteen rows anteriorly, in seventeen rows on middle of body, and in fif- 
teen rows near the tail. Ventrals 153; anal divided; subcaudals in 68 
pairs. 
Color olive above, with an indistinct lateral series of dark blotches; 
head with a black stripe from the posterior border of the orbit to the angle 
of the jaws; upper labials with sharp black markings along their posterior 
