132 SOME CHINESE VERTEBRATES. 
AMBLYCEPHALIDAE. 
AMBLYCEPHALUS CHINENSIS, Sp. NOv. 
Plate 2, Fig. 1. 
Type:— No. 7326 M.C. Z. Luluping, western Szechwan, China. W. R. 
Zappey- 
Closely related to A. monticola (Cantor) from the eastern Himalayas, 
Khasi and Naga hills, and the Nocobar Islands. 
Rostral not quite as deep as broad; internasals not half as long as pre- 
frontals; latter entering orbit; frontal slightly longer than broad, longer than 
its distance from the end of the snout, much shorter than the parietals; loreal 
present but excluded from and entering orbit by two rather small preoculars; 
two postoculars, which on one side are fused into one; temporals 2 + 3; seven 
upper labials of which the fourth barely enters the orbit on one side, while on 
the other all are excluded by the extended inferior prefrontals and postfrontals; 
three pairs of large chin shields, anterior longer than broad and in contact with 
the symphyrial. Scales in 15 rows, smooth; three rows of vertebrals slightly 
enlarged. Ventrals 180; anal entire; subcaudals 60. 
Color:— brown above, with vertical blackish bars on the sides; a black 
line from eye extending along nape, which is connected with its fellow on the 
opposite side by a black line which curves forward so as to almost touch the 
parietals; another black line from the eye to the angle of the mouth; yellowish 
below with very scattered dots of blackish brown. 
Although there can be no doubt as to the very great similarity of this 
species with Cantor’s A. monticola, yet it may be easily distinguished by the 
fact that the loreal does not enter the eye; nor does more than one labial. The 
very slightly enlarged vertebrals have no tendency toward becoming hexagonal, 
and there are rather fewer of both ventral and subcaudal scales in the type 
specimen than the least number recorded for Cantor’s species. It shows rela- 
tionship also with A. malaccanus (Peters), which, however, has no preocular. 
CROTALIDAE. 
AGKISTRODON BLOMHOFFII BREVICAUDUS Stejneger. 
Plate 2, Fig. 2. 
STEJNEGER, Bull. 58, U.S. N. M., 1907, p. 463-464. 
