TRIMEBESURUS. 429 



530. Trimeresurus piirpureomaculatus. 



Trig'onocephcalus piirpureomaculatus, Crrai/, III. Lid. Zoo!, i, pi. Ixxxi 



(1832). 

 'JViuieresurus purpureus, Gray, Zool. Misc. p. 48(1842); Giinth. 



Jiept. B. I. p. 387. 

 Trimesurus cariiiatus, Grctji, Zool. Misc. p. 48. 

 TrigoDoceplialuspuoiceus {nan Bviniv.), Cantor, J. A. S. B. xvi, 1847, 



p. 1043. 

 Cryptelytrops carinatus, Cope, Proc. Ac. Fhilad. 1859, p. 340. 

 Trimeresurus porphyraci'us, Bli/th, J. A. S. B. xxix, 1861, p. Ill ; 



Theob. J. Linn. Soc. x, 1808, p. 64 ; Sfoliczka, J. A. S. B. xxxix, 



1870, pt. 2, p. 218 ; Theob. Cat. p. 222. 

 Trimere.surusandersouii, Theob. Cat. licpt.As. Soc. Mus. 1868, p. 75 ; 



Stoliczka, J. A. S. B. xxxix, 1870, pt. 2, p. 210, aud xl, 1871, 



p. 443 ; Fayrer, Thanatoph. pi. xv ; Theob. Cat. p. 224. 

 Trimeresurus obscurus, Theob. Cat. liept. As. Soc. Mus. p. 70. 

 Trimeresurus monticola, part., Anders. P. Z. S. 1871, p. 194. 



Eo.stral as deep as broad ; upper head-scales very small, juxta- 

 posed, convex, or obtusely keeled ; supraocular very narrow, some- 

 times broken up ; internasals small, separated from each other by 

 one or two scales ; 12 to 15 scales on a transverse line between 

 the supraoculars ; tuo or three small postoculars and a subocular, 

 which is separated from tlie labials by two or three series of scales ; 

 11 to 13 upper labials, the fourth and succeeding small, the first 

 usually fused with the nasal, the second (usuall}') forming the an- 

 terior border of the loreal pit ; temporal scales keeled. Scales 

 strongly keeled, in 25 or 27 rows. A'entrals 100-170 (182) ; anal 

 entire ; subcaudals 55-75 pairs. Dark purplish brown above, 

 uniform or variegated with pale green ; flanlvs usually pah^ green 

 or spotted with pale green, or with a series of pale spots on the 

 outer series of scales ; olive or greenish white below, uniform or 

 spotted \\\\\\ black. 



Total length 3 feet 2 indies ; tail 6 inches. 



Hah. Malay Peninsula, Mergui, Andamaus and Nieobars. 



A^ar. bicolor. 



Trimesurus bicolor. Gray, A. M. N. H. (2) xii, 1842, p. 392. 

 Trimeresurus CAnivAixx?,, Giinth. Jiept. ii'. /. p. 380 ; Stoliczha,J. A. 



S. B. xxxix, 1870, pt. 2, p. 217 ; Lhyrer, Thanatoph. pi. xiii ; 



Theob. Cat. p. 221. 



Uniform grass-green above, with or without a series of w hitish 

 spots along the outer series of scales; uniform greenish wliite 

 beneath. 



llah. Himalayas, Bengal, Assam, Burma, Sumatra. 



531. Trimeresurus gramineus. 



Bussell, Lid. Serp. i, pi. ix, it ii, pi. xx. 

 Coluber firamineus, Shato, Zool. iii, p. 420. 

 Mpera viridis, iJaud. Bept. vi, p. 112. 



