66 BARBOUR — ASIATIC AMPHIBIA AND REPTILIA le a 
Natrix vibakari (Boie). 
Boie, Isis, 1827, p. 207. 
Stejneger, Herp. of Japan, 1907, pp. 266-271. 
A single half-grown example of this common species agrees well 
with Stejneger’s description of a specimen from Yokohama. It 
was taken at Hiuga, Kiusiu, Japan. 
Natrix tigrina (Boie). 
Boie, Isis, 1826, p. 205. 
Stejneger, Herp. of Japan, 1907, pp. 272-277. 
Three specimens, two young and one half-grown, from Yoko- 
hama, add nothing to our knowledge of this species. ‘There is no ¢ 
irregularity of the pre- or postocular scales in any of these. 
Natrix equifasciata Barbour. 
Pl. VII, figs. 1-4. 
* Barbour, Bull. Mus. Comp. Zodl., Vol. 51, 1908, p. 317. 
Eye rather large. Rostral broader than deep, just visible from above; 
internasals almost wedge-shaped, twice as long as broad, one and one half 
times as long as prefrontals; frontal once and two thirds as long as broad, 
as long as distance from end of the snout, shorter than the parietals; 
loreal as long as deep; two preoculars and two or three postoculars; one 
or two suboculars may be present,— these are very small and separated 
by the fifth upper labial. Temporals 2 + 3, — these may be broken into 
several scales; nine upper labials, the seventh largest, and the fifth always 
entering orbit,— the fourth and sixth may do so also, or they may be 
excluded by the suboculars; five pairs of lower labials in contact with 
anterior chin shields, which are a very little shorter than the posterior. 
Seales in nineteen rows, strongly keeled, except the outer row, on which 
the carination is weak. Ventrals 148-151; anal divided; subcaudals 
74-75. 
Color (in aleohol): Boldly banded with twenty or twenty-one black bars 
on the body and twelve on the tail. The interspaces narrower than the 
