220 COLUBRID-£. 
ventrals ; these blotches may be subconfluent or form two chain-like 
series ; subcaudals unspotted or with a few small scattered dots. 
Total length 700 millim.; tail 100. 
Bengal and Assam, Burma, Siam, Cochinchina, and Southern 
China. 
A. Above with very ill-defined dark longitudinal streaks; belly 
with a lateral series of square brown spots. Scales in 19 rows. 
(S. cyclurus, S. bicatenatus.) 
a. 6 (V. 175; C. 37). Toungoo. KE. W. Oates, Esq. [P.]. 
Have. (Vi l70 Clas} Pegu. W. Theobald, Esq. [C.]}. 
ce. Yg. (V. 156; C. 43). 5S. China. R. Swinhoe, Esq. [C.]. 
d.  (V. 166; C. 43). —P? College of Surgeons. 
(Type of S. bicatenatus.) 
B. Above with four more or less distinct dark longitudinal streaks 
and a light vertebral line; belly with a lateral series of square 
brown spots. Scales in 19 rows. 
an90(V. tio; C40). Peau. W. Theobald, Esq. [C.]. 
b. 9 (V. 167; C. 44). Tenasserim. Col. Beddome C4 
C. Like the preceding, but ventral spots absent or reduced to a few 
small dots. 
a-b. Her. (V. 171, 178; Pegu: W. Theobald, Esq. [C.]. 
C. 46, 43). 
D. No longitudinal streaks, no ventral spots. Scales in 19 rows. 
wb. (V. 167; C. 46). Pegu. W. Theobald, Esq. [C.]. 
& yg. (V. 150; C. 49). 
E. No longitudinal streaks, no ventral spots. Scales in 21 rows. 
(S. fasciolatus, S. cochinchinensis.) 
a,b. ¢ (V. 160; C, 42) Pachebone, Siam. M. Mouhot [C.]. (Types 
& 2 (V.165; C. 45). of S. fasciolatus. ) 
ec. Hgr. (V. 173; C. 41). Siam. M. H. Newman, Esq. [ P.]. 
d. Yg. (V. 210; C. 47). Lao Mountains. M. Mouhot [C.]. (Type 
of S. cochinchinensis). 
F. Above with four dark stripes as in B, which are crossed by black 
bars; belly immaculate. Scales in 21 rows. 
a. Her. (V. 180; C. 58). Bia-po, KarinHills. M. L. Fea [C.]. 
4. Simotes albocinctus. 
Coronella albocincta, Cantor, Proc. Zool. Soc. 1839, p. 50. 
Xenodon purpurascens, var., Cantor, Cat. Mal. Rept. p. 67 (1847); 
Blyth, Journ, As. Soc. Beng. xxiii. 1854, p. 289. 
Coronella punctulatus, Gray, Aun. & Mag, N. H. (2) xii. 1853, 
. 389. 
Simated purpurascens, vars. D and E, Giinth. Cat. p. 25 (1858). 
—— punctulatus, Giinth. Rept. Brit. Ind. p. 217 (1864); Anders. 
Proc, Zool. Soc. 1871, p. 169, 
