286 COLUBRID, 
entering the eye; both pairs of chin-shields subequal in size. 
Scales in 17 rows. Ventrals 189; anal divided; subcaudals 87. 
Anterior half of the body reddish brown above, posterior blackish 
grey ; head above blackish, the first three labials with yellow spots ; 
a short broad yellow streak from behind and below the eye poste- 
riorly to the angle of the mouth; a black collar, margined on both 
sides with an interrupted yellow band, of which the anterior is the 
most distinct; an indistinct series of blackish-grey dorsal spots, 
almost forming a dark undulating band; sides marbled and freckled 
blackish grey, this colour being separated from the upper brown one 
by a series of closely-set black spots, which are partially conspicuous 
on the posterior part of the body; chin dusky ; lower parts yellow 
with a vermilion tinge, each ventral with a large black spot near 
its outer extremity. 
Total length 440 millim.; tail 110. 
Camorta, Nicobars. 
104. GRAYIA. 
Heteronotus (non Lap.), Hallow. Proc. Ac. Philad. 1857, p. 67. 
Grayia, Giinth. Cat. Col. Sn. p. 50 (1858). 
Glaniolestes, Cope, Proc. Ac. Philad. 1862, p. 191. 
Leionotus (zon Bibr.), Jan, Elenco sist. Ofid. p. 68 (1863), and Arch. 
Zool. Anat. Phys. iii. 1865, p. 240. 
Macrophis, Bocage, Jorn. Sc. Lish, i. 1866, p. 67. 
Maxillary teeth equal, 22 to 25; mandibular teeth equal. Head 
distinct from neck ; eye moderate, with round pupil ; nostril directed 
upwards, in a semidivided nasal shield. Body cylindrical, stout ; 
scales short and smooth, without apical pits, in 17 or 19 rows; 
ventrals rounded. ‘Tail rather long; subcaudals in two rows. 
Tropical Africa. 
Synopsis of the Species. 
I. Fourth upper labial entering the eye; two postoculars; two 
superposed anterior temporals. 
Seven or eight upper labials; ventrals 145-161. 1. smythu, p. 286. 
Nine upper labials ; ventrals 219.......... 2. furcata, p. 287. 
II. Fourth and fifth upper labials entering the eye; three post- 
oculars ; a single anterior temporal .... 3. giardi, p, 288. 
1. Grayia smythii. (Prarr XIII. fig. 3.) 
Coluber smythii, Leach, in Tunkey’s Explor. R. Zaire, App. p. 409 
1818). 
ae (non Lacép.), Hallow. Proc. Ac. Philad. 1844, p. 118. 
Coronella triangularis, Hallow. Proc. Ac. Philad. 1854, p. 100. 
Heteronotus triangularis, Hallow. Proc. Ac. Philad. 1857, p. 68. 
Grayia silurophaga, Giinth. Cat. p. 51 (1858); F. Miill. Verh. nat. 
Ges. Basel, vii. 1885, p. 688. 
Leionotus schlegeli, Jan, Elenco, p. 68 (1863), and Arch. Zool. Anat. 
Phys. iii. 1865, p. 241. 
