398 COLUBRID. 
with the anterior chin-shields ; posterior chin-shields longer than the 
anterior, and separated from each other by small scales. Scales in 
19 rows, smooth, very narrow, with a single apical pit. Ventrals 
very distinctly angulate laterally, 205-218; anal divided; sub- 
caudals ¥8-132, Olive anteriorly, with a few black, whi 
spots on each side, the anterior of which is sometimes confluent 
with its fellow and forms a nuchal collar; head uniform olive-brown 
above, labials, pre-and postoculars yellowish white; the greater 
part of the body uniform pale olive, yellowish, or pale reddish 
brown; uniform yellowish white inferiorly. 
Total length 1080 millim. ; tail 340. 
Southern Europe east of the Adriatic, Asia Minor, Transcau- 
casia, North-western Persia, Syria, Lower Egypt. 
a. 3d (V. 210; C.114). Zara, Dalmatia. Corre M. G. Peracca 
AF 
b-e. Hgr. (V. 217; C. 126) Spalato, Dalmatia. Prof. Kotombatovie 
& yg. (V. 213; C. 114). Be Fa 
d,e. d (V. 218,212; C. ~ Dalmatia. 
121, 126). 
F. 3 (V. 210; C. 127). Xanthus, Asia Minor. Haslar Collection. 
g-h. 3 (V. 211,208; C. Xanthus. Sir C. Fellows [P.]. 
124, 182). 
t. d (V.218; C.131). Budrum, Ruins of ~—_H.MS. ‘ Supply.’ 
Halicarnassus. 
<7 Hert. 212, 205 ; Mt. Tabor. Canon Tristram [C,]. 
16. Zamenis rhodorhachis. 
Zamenis ventrimaculatus, part., Giinth. Cat. p. 106 (1858), and Zool. 
Rec. 1872, p. 73; Stoliczka, Proc. As. Soc. Beng. 1872, p. 130; 
Blanf. Zool. E. Pers. p. 414 (1876). 
—— rhodorachis, Jan, in De Filippi, Viagg. in Pers. p. 356 (1865) ; 
Bouleng.’ Proc. Zool. Soc. 1891, p. 632. 
—— ladacensis, Anders. Journ, As. Soc. Beng. xl. 1871, p. 16; 
Bouleng. Faun. Ind., Rept. R 326 (1890); W. L. Sclater, Journ. 
As. Soc. Beng. \x. 1891, p. 238. 
Gonyosoma dorsale, Anders. Proc. Zool. Soc. 1872, p. 395, fig. 
Snout moderately projecting, obtuse. Rostral a little broader 
than deep, the portion visible from above measuring one fourth or 
one third its distance from the frontal; internasals as long as or 
shorter than the prefrontals ; frontal anteriorly considerably 
broader than the supraocular, about once and a half as long as 
broad, as long as its distance from the end of the snout, shorter 
than the parietals; loreal usually longer than deep; one preocular, 
usually in contact with the frontal; a subocular below the prae-~ 
ocular; two postoculars; temporals 243 (rarely 2+2); nine 
upper labials, fifth and sixth entering the eye; four or five lower 
labials in contact with the anterior chin-shields ; posterior chin- 
shields longer than the anterior, separated from each other by 
scales. Scales smooth, in 19 rows. Ventrals obtusely angulate 
laterally, 214-262; anal divided; subcaudals 113-154. Greyish 
7 
