78 OPHIDIANS. 
Crotalus Trimeres. monticola. 
Parias maculata, Gray. 
Length 23// to 29/’; diameter 1/7; abdominal scuta 187 to 141; subcaudal 
squame 41, and with 23 series of black scales. Those on head smooth, 
on body slightly carinated ; supraciliaries very large. Color in some in- 
dividuals pale brown, with a vertebral row of large, square, dark brown 
-macule ; along the sides a row of small dark spots; a pale streak across 
the temples. Belly dark mottled. Other specimens are of a cinnamon 
gray, beautifully marked with dark square spots, with the common U- 
shaped mark on the neck of a whitish color. Eyes small; supranasals 
separated by two shields. Specimens were from Darjeeling. 
Crotalus Trimeres. strigatus, Gray. 
Trigonocephalus Nilgherriensis, Jerdon. 
This species is found on the Nilgherries and Deccan, and 
also in Ootacamund. 
Length not exceeding 19/7. Abdominal scuta 136 to 142; subcaudal 
squame 81 to 46. Whitish, horseshoe-shaped mark on the neck; brown 
with dark markings, a dark brown band leading from eye toneck; whole 
upper surface of head covered with small nearly smooth scales; nine or 
ten upper labials; scales carinate in 21 series. Tail terminates in a coni- 
cal cuplike scale. 
Crotalus Trimeres. mucrosquamatus. 
Trigonocephalus mucrosquamatus, Cantor. 
Habitat, Caga hills and Assam. Length not given. Can- 
tor’s description is, viz. : 
Abdominal scuta 218; subcaudal squame 91. Color brownish-gray 
above, with black, white-edged rings, covered with oval, slightly carin- 
ated, pointed, imbricate scales, whitish beneath, dotted with black. 
Crotalus Trimeres. Andersonit, Theobald. 
Habitat, Assam. 
Length 20/ ; tail 23’”.. Abdominal scuta 182 ; subcaudal squame 56 to 
