92. siMon:-. 219 



A. Pale transverse bands narrower than the interspaces between 

 them ; scales in 19 rows. (<V. jmrjntrascens, Schleg.) 



a. V_-. (V. 1-!: C.43). Javn. 



f>. Il-rr. (V. 109; C. 61). Matang, Borneo. 



B. Narrow dark transverse bands ; scales in 19 rows. 



(S. labuanensis, Gthr.) 



a. Hgr. (V. 186; C. 54). Singapore. Governor of Singapore [P.]. 



6. Yg. (V. 166; 0. 63). Deli, Sumatra. Mr. Ivereeu [C.J. 



Yy. (V. 1<>9; C. 69). Sumatra. Dr. Bleeker. 



d-e. rf (V. 170; C. Y) & Nias. Hr. Sunderuiann [C.]. 



$ (V. 174; C. 63). 



/. J (V. 171; C. ?). Labuan, Borneo. L. L. Dillwyn,) Types of 



Esq. [P.]. \ S. labua- 



g. d (V. 187; C. 60). - ? | nensis. 



C. Narrow dark transverse bands ; scales in 21 rows. 



(S. trinotutus, D. & B.) 



a. (V. 190; C. 53). Pinang. Dr. Cantor. 



b. Hgr. (V. 165 ; C. 53). Deli, Sumatra. Prof. Moesch [C.]. 



3. Simotes cyclurns. 



Coronella cyclura, Cantor, Proc. Zool. Soc. 1839, p. 50. 



Simotes bicatenatus, Giinf/i. Kept. Brit. Ind. p. 217 (1864) ; Theob. 



Jnurn. Linn. Soc. x. 1868, p. 40; Stoliczka, Journ. As. Soc. Beng. 

 xl. 1871, p. 430; Anders. Proc. Zool. Soc. 1871, p. 170. 



fasciolatus, Giinth. 1. c. p. 218, pi. xx. fig. B. 



- cochinchinen.-i.s, Giinth. 1. c. p. 219, pi. xx. fig. C. 



bivvicauda, Steind. Norara, Rej)t. p. 61, pi. iii. figs. 13 & 14 

 (18U7). 



- obscurus, Theob. Cat. Kept. As. Soc. Mm. p. 48 (1868). 



- crassus, Theob. I.e. 



- cyclurus, Bouleny. Faun. Ind., Rept. p. 311 (1890); W. L. 

 Sclater, Joum. As. Soc. Bang. Ix. 1890, p. 235. 



Nasal divided ; portion of rostral seen from above nearly as long 

 as its distance from the frontal ; suture between the internasals as 

 long as or shorter than that between the praef rentals ; frontal as 

 long as its distance from the end of the snout or a little longer, and 

 as long as the parietals ; loreal as long as deep, or a little deeper 

 than long ; praeocular single, usually with a small subocular below 

 it, between the third and fourth labials ; two postoculars ; temporals 

 2 + 2; normally eight upper labials, fourth and fifth entering the 

 eye ; four, rarely three, lower labials in contact with the anterior 

 chin-shields ; posterior chin-shields one half or two thirds the length 

 of the anterior. Scales in 19 or 21 rows. Ventrals 156-210, 

 angulate laterally ; anal undivided ; subcaudals 37-5S. Pale brown 

 or greyish above, with or without four darker brown stripes, the 

 median pair separated by the vertebral series of scales ; antero- 

 lateral border of some of the scales frequently black ; markings on 

 the head as in S. albocinctut ; lower surfaces yellowish, uniform, 

 or with squarish brown spots on each side bolnw the angle of the 



