— 11 — 



Color in formalin brownish gray above, with a series of dark brown 

 blotches on the back, consisting of two halves; sides with a series of dark 

 brown spots ; head uniformly dark brown, supralabials except first to third 

 whitish ; a narrow wlrite band from the corner of mouth runs along the side 

 of the neck, occupying outer row of scale posteriorly ; third and fourth lower 

 labials yellowish wlnte, other shields on the lower jaw brownish gray ; under- 

 grayish white, maculated with black. 



Total length . c . 478 mm. 



Snout to vent 393 mm. 



Vent to tip of tail 85 mm. 



Described from a specimen from Mt. Noko, Nanto, collected by Yone- 

 taro Kikuchi in October, 1918. 



Habitat : — Mt. Noko, Central Formosa (a single specimen). 



Remarks : — The present species is easily distinguished from the other 

 species of Trimeresurus in having 19 rows of scales. 



24. Trimeresurus gramineus (Shaw). 



Plate XVI. 



1802. Coluber gramineus Shaw, Gen. Zool., Ill, Pt. 2, p. 420 (Vizagapatam, 

 India). 



Eight specimens from Koshun ; five specimens from Reiko ; three from 

 Horisha ; two from Hoppo ; one from Banshiro, Tamusui, and Taichu. Most 

 common throughout the Island of Formosa. 



