34 COLUBRIDJE. 



the eye. Scales in 17 rows, all keeled except the two outer on e;i<-h 

 side ; the keels on the row on each side of the vertebral strongest. 

 Ventrals not angulate, 152; anal divided; subcaudals 94. (invu 

 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 365. 



Costa K ica. 



5. Coluber porphyracens. 



Coluber porphyraceus, Cantor, Proc. Zool. S'jc. 1839, p. 61 ; Git nth. 



Rept. Brit. 2nd. p. 239, pi. xx. tig. J (18W) ; Anders. Pr<,<: X.,,,1. 



Soc. 1871, p. 172, and An. Zool. Re*. Yunnan, p. 812 (1^7:') : 



Hubrecht, in Snelleman, Nat. Hist. Midden- Sumatra, Rept. p. 5, 



pi. . fig. 1 (1887). 



Psammophis nigrofasciatus, Cantor, 1. c. p. 53. 

 Coronella callicephalus, Gray, Ann. $ May. N. II. (2) xii. 1853, 



p. 390 ; Blyth, Journ. As. Soc. Beng. xxiii. 1855, p. 289. 

 Coluber callicephalus, Giinth. Cat. p. 92 (1858). 

 Ablabes porphyraceus, Bouleny. Faun. Ind., Rept. p. 308 (1890). 



Rostral nearly twice as broad as deep, visible from above ; inter- 

 nasals shorter than the praefrontals ; frontal broad, as long as or a 

 little longer than its distance from the end of the snout, shorter tlian 

 the parietals ; loreal rather small, longer than deep ; a large prae- 

 ocular ; two postoculars; temporals 1+2; eight upper labials, 

 fourth and fifth entering 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 tlie 

 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 ; lower parts uniform yellow. 



Total length 760 millim. ; tail 140. 



Eastern Himalayas, hills of Assam, Burma, Yunnan, Malay 

 Peninsula, Sumatra. 



a. J (V. 197 ; C. 68). Khasi Hills. Sir J. Hooker [P.]. 



(Type of C. callicephalus.) 

 b-c. <S (V. 208; C.76) & Khasi Hills? Dr. Griffith. 



$ (V. 206; C. 73). 

 d-f. $ (V.213,213;C.?, Khasi Hills. T. C. Jerdon, Esq. 



72) & yg. (V. 199; [P.]. 



C. 66). 



ff . Yp. (V. 195; C. 72). Himalayas. Col. Beddome [C.]. 



A-/. (V. 212 ; C. 60), Darieehng. W. T. Blauford, Esq. 



hgr. (V. 202; C. 63), [P.J. 



& yg.(V. 205, 190; C. 



69, 65). 

 m-o. $ (V. 208; C. 57) Tounp-yi, Shan States, Lieut. Blakeway [C.l. 



& yg. (V. 204. 190; C. 6000ft. 



KJ,"04). 

 p. Yg. (V. 215 ; C. 76). Singapore. Dr. Cantor. 



(Type of P. niyrofasciatus.) 



