ART. 11 HERPETOLOGICAL COLLECTIONS FROM SIAM — COCHRAN 27 



lateral stripe black, separated from back by a pale golden yellow 

 stripe; belly pale yellow; scales of anterior third of back showing 

 light blue background when pulled apart. A very active little snake, 

 not uncommon in Bangkok. This one contains a small animal 

 (lizard?). — H. M. S.] The lizard is a young Caloies. 



[76017. "Ngu saipan." Looks somewhat different from same kind 

 of snake at Bangkok. Top of head and back burnished bronze; 

 blue area under scales appearing as rhomboidal spots when scales 

 are pulled aside. — H. M. S.] 



[76028. Bright greenish-yellow on side of neck. — H. M. S.l 

 [This is a common snake in Bangkok and in many districts of Siam. 

 Its reputed habit of leaping from tree to tree has not been observed 

 by me, but on one occasion, in 1926, an example of its leaping ability 

 was given in my house in Bangkok. One morning as I got out of bed 

 a full-sized snake of this species was found sunning itself stretched on 

 the sill of a double door opening on a veranda. As I approached it 

 ran behind a door and climbed to the top of the door whence it sprang 

 to the rail of the veranda and thence under the eaves. Some time 

 afterwards I found that the shortest distance from the door to the 

 rail was 104 cm., but as the snake leaped the distance was over 145 

 cm.— H. M. S.] 



HOLARCHUS PURPURASCENS (Schlegel) 



U.S.N.M. 



70324(81913)... Bangkok Apr. 21, 1927_ 



70325(81925) do .___ May 18, 1925. 



70326 (S2169) do Oct. 13, 1925.- 



70355(82007).-. Lam Tong Lang July 7, 1925... 



72066 (82874)... Bangkok (H. M. 8mith's yard) Nov. 5, 1926.. 



72067(82876)... Bangkok Nov. 11, 1926. 



72068 (82880)... Bangkok (H. M. Smith's yard) Nov. 17, 1926. 



72069(82902)... Bangkok Dec. 15, 1926. 



75683 (83490) do Aug. 4, 1927-. 



75684(83493) do do 



76090(83913)-.. Pichit Aug. 8, 1928. . 



76122(83943)... Bangkok Aug. 24, 1928. 



[Called "ngu hao ( = hiss) pi ( = flute) keo ( = glass)" by the Siamese, 

 who are very familiar with it; it is said to make a noise like a 

 cricket.— H. M. S.] 



The young specimen from Lam Tong Lang agrees perfectly with 

 young Bangkok snakes in coloration. In two adult Bangkok snakes, 

 70324 and 70325, the color markings are not distinct, while in 72068, 

 also fully adult, the markings are as bright as in the young. All have 

 the same pattern which Dr. Malcolm Smith describes as characteristic 

 of the Bangkok snakes.^ In all cases the scale-rows around the body 

 are 21 in number; there is a single preocular and 1 subocular. The 



8 Journ. Nat, Hist. Soc. Siam, vol. 1, No. 2, 1914, p. 98. 



mtrals 



Caudals 



175 



38 



165 



46 + 



173 



38 



171 



52 



177 



37 



167 



43 



174 



37 



172 



35 



176 



39 



174 



38 



160 



42 



167 



45 



