34 COLUBRID. 
the eye. Seales in 17 rows, all keeled except the two outer on each 
side; the keels on the row on each side of the vertebral strongest. 
Ventrals not angulate, 152; anal divided; subcaudals 94. Green 
above and on the outer fourth of the ventral shields, yellow beneath ; 
the keels of the median three dorsal rows black. 
Total length 1240 millim.; tail 360. 
Costa Rica. 
5. Coluber porphyraceus. 
Coluber porphyraceus, Cantor, Proc. Zool. Soc. 1839, p. 51; Giinth. 
Rept. Brit. Ind. P- 239, pl. xx. fig. J (1864) ; Anders. Proc. Zool. 
Soc. 1871, p. 172, and An. Zool. Res. Yunnan, p. 812 (1879) ; - 
Hubrecht, a Snelleman, Nat. Hist. Midden-Sumatra, Rept. p. 5, 
pl. —. fig. 1 (1887). 
Psammophis nigrofasciatus, Cantor, J. ce. p. 53. ‘ 
Coronella callicephalus, Gray, Ann. § Mag. N. H. (2) xii. 1853, 
p- 890; Blyth, Journ. As. Soc. Beng. xxiii. 1855, p. 289. 
Coluber callicephalus, Giinth. Cat. p. 92 (1858). 
Ablabes porphyraceus, Bouleng. Faun. Ind., Rept. p. 308 (1890). 
Rostral nearly twice as broad as deep, visible from above; inter- 
nasals shorter than the prefrontals; frontal broad, as long as or a 
little longer than its distance from the end of the snout, shorter than 
the parietals ; loreal rather small, longer than deep; a large pre- 
ocular; two postoculars ; temporals 1+2; eight upper labials, 
fourth and fifth entermg the eye; four or five lower labials in 
contact with the anterior chin-shields, which are longer than the 
posterior. Scales smooth, in 19 rows. Ventrals without keel, 
190-215; anal divided; subcaudals 52-76. Pale reddish brown 
above, with dark brown black-edged cross bands; a black streak 
along the middle of the head, and another on each side, from the 
eye to the first transverse band; the whole or posterior part of body 
and tail with two longitudinal black lines, in addition to the cross 
bands ; lowér parts uniform yellow. 
Total le ngth 760 millim. ; tail 140. 
Eastern ‘Himalayas, tails of Assam, Burma, rusrans Malay 
Peninsula, Sumatra. 
aa (Y- 197; C. 68). Khasi Hills. Sir J. Hooker [P.]. 
(Type of C. callicephalus.) 
b-c. ¢ (V. 208; C.76) & Khasi Hills? Dr. Griffith, 
2 (V. 206; C. 73). 
d-f. 2 (V. 213, 213; C.?, Khasi Hills. . T. C. Jerdon, Esq. 
72) & yg. (V. 199; (Bae 
C. 66). . 
Ye. v. 195; C.72). Himalayas. Col. Beddome [C.]. 
an 2 ( ¥: 212 ; C. 60), Darjeeling. W.T. Blanford, Esq. 
her. WV. 202; C. 63), [P.]. 
& yg. (V. 205, 190; C. 
59, 65). 
m- #4 2 (V. 208; C. 57) Toungyi, Shan States, Lieut. Blakeway [C. ], 
& yg. (V. 204, 190; C. 5000 tt. 
60, G4). 
p. Ye. (V.215;'C. 76). | Singapore. Dr. Cantor. 
(Type of P. nigrofasciatus.) 
