68 BARBOUR — ASIATIC AMPHIBIA AND REPTILIA [PYLE AC. 
edges; upper lip yellowish. Lower surfaces dull white; confluent dark olive 
puncticulations form three irregular bands, one along the middle and one 
on each end of the gastrosteges; there are many scattered spots elsewhere, 
also larger diffuse brown blotches. On the under surface of the tail the 
dots are irregularly scattered and produce a gray effect. Along the sides 
of the tail is a white line formed by spots on the outer end of each subeaudal 
scale. There are no spots on the throat, which is pure white. Length of 
body 370 mm.; length of tail 100 mm. 
Type,— no. 7103, Mus. Comp. Zoél., a single specimen, from Mt. Arizan, 
central Formosa, taken 29 November, 1906, by one of Mr. Owston’s 
Japanese collectors. 
This species seems to be related, as naturally would be expected, 
to P. dorsalis (Giinther) from China. It differs in having two 
preoculars instead of one, in the number of ventral and subcaudal 
scales, and in coloration. 
It was a privilege to associate with this interesting new species of 
a genus hitherto unrecorded from Formosa, the name of a kindly 
friend and generous helper, Dr. Leonhard Stejneger. 
Enhydris plumbea (Boie). 
Boie, Isis, 1827, p. 550. 
Stejneger, Herp. of Japan, 1907, pp. 300-302. 
Two typical examples from Ting an, Hainan, and one from 
Bankoro, central Formosa. 
Elaphe quadrivirgata (Boie). 
Boie, Isis, 1826, p. 209. 
Stejneger, Herp. of Japan, 1907, pp. 327-333. 
A single young specimen from Yokohama. A very common form. 
Elaphe conspicillata (Boie). 
Boie, Isis, 1826, p. 211. 
Stejneger, Herp. of Japan, 1907,’pp. 334-337. 
After the long and excellent review of this species which Stejneger 
