KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 55- N:0 3. 15 



19. Dendrelaphis subocularis Blgr. 



One specimen, Sriracha, Eastern coast of the Gulf of Siam, end of April 1912. 



»As far as I knovv, this species has only been recorded from Upper Burma. 



The specimen in the collection differs in having the posterior chin-shields longer than 



the anterior. The ventrals are also fewer in number than stated in the litterature 



viz. 156 instead of 167. Total length 690 mm. Length of tail = 190 mm. Ventrals 



91 

 156. Subcaudals --■ (?), tail a little mutilated.» 

 91 v ' 



L. G. Andersson. 



20. Simotes purpurascens Schleg. 



One specimen, Koon Tan, Northern Siam, May 1914. 



Seems to be fairly rare, and as far as I know, it has only once been recorded 

 from Siam before (Flower, P. Z. S. 1899 p. 671). 



On the specimen in my collection the portion of the rostral seen from above 

 is longer than its distance from the frontal. The suture between the internasals is 

 longer than that one between the praefrontal ; 1 prseocular; 1 subocular (on one side 

 the subocular is very small and only touches the eye); 2 postoculars ; 4 lower labials 

 in contact with the anterior chin-shields. Scales in 21 rows (the specimen thus be- 

 longing to Var. C. in the Catalogue Brit. Mus.). 



Total length = 735 mm. 



Length of tail — 84 



Ventrals 176. 



Subcaudals — . 

 37 



21. Simotes cyclurus Cant. 



One specimen (imm.), Ilat Sanuk, Siamese Malaya, close to the Tenasserim börder, 3 /n 1914. 

 One specimen, Chieng Mai, Northern Siam, 2r '/c 1914. 

 Two specimens, surroundings of Bangkok, 1914. 

 One specimen, Bangkok, 1911. 



Siamese name: ngu hao pi kaa-o (M. Smith). 



»The specimen collected at Bangkok 1911 has 2 prseoculars and 1 subocular. 

 It corresponds with Form F. in the Catalogue of Snakes in the Br. Museum although 

 the lateral streaks are very much narrower. Scales in 21 rows. 



Total length = 325 mm. 



Length of tail = 50 » 



Ventrals 173. 



Subcaudals - — . » 

 50 



L. G. Andersson. 



