COLLECTION OF OPHIDIA FROM THE CHIN HILLS. 343 



Family— VIPERID^E . 



Sub-family — CROTALiNiE . 

 Lacliesis gramineus. 

 Two specimens. 



No. XXIX.— Length 20 ins. Tail 3| ins. Dorsals 21—21—15. Ven- 

 trals 166. Subcaudals 63. Colour grass green above with a series of white 

 vertebral spots and a white line on the outer rows of scales with a red line 

 below it, extending from the gape to half way along the tail. Tail reddish 

 above. Beneath greenish white. 



No. XXX.— Length 25 in. Tail 4 in. Dorsals 21—21—15. Ventrals 159. 

 Subcaudals 55. Colour as in the last but without the vertebral spots. 

 Taken on the 10th October 1908. 



Lacliesis mon ticola . 

 No. XXXI.— Length 19f ins. Tail 2 1 ins. Dorsals 25—23—21. Ven- 

 trals 151. Subcaudals 36. Three rows of scales between the eye and the 

 labials. Postoculars two small ones. Supralabials 7 on the right, but 8 on 

 the left. 



No. XXXII.— Length 21$ ins. Tail 3^ ins. Dorsals 25—25—19. Ven- 

 trals 151. Subcaudals 47. 



No. 17 of 1909. — An immature specimen, 10J ins. in length. Tail 1-| ins. 

 Dorsals 25—23—? Ventrals 144. Subcaudals 40. 



Two immature specimens, Nos. XXXIo and XXXI6 were brought in with 

 No. XXXI and said to be its young. 



Lacliesis jerdoni. 

 Five mature specimens. 



No. XXXIII, a female kept in captivity by me, gave birth on the 12th 

 September 1908 to four young ones two of which, Nos. XXXIII« and 

 XXXIII6 survived. The dorsals counted 21 anteriorly (except in one 

 specimen, No. 6 of 1909 in which they numbered 23), 21 at midbody and 17 

 posteriorly. Three specimens were captured by me on the rifle range one 

 morning, viz., Nos. 5, 6 and 7 of 1909. No. 5 had subsequently to be 

 thrown away. Nos. 6 and 7 of which 6 is a male and 7, I presume, a female, 

 were caught "in copula", I think, as they were found together under a 

 large fallen thistle on 15th May 1909. 



A great many of the specimens collected had to be thrown away as will 

 be seen from the following table of the numbers of commoner snakes 

 received : — 



Tropidonotus . . .. .. 19 specimens (may include also 



Pseudoxenodon) . 

 Oliyodon dorsalis . . . . 4 specimens. 



Lachesis gramineus .. . . 16 specimens. 



„ jerdoni . . . . 8 specimens, 



„ monticola . . . . 6 specimens. 



