NOTES. 405 
Tt will be seen from the attached figures that the prozygapo- 
physes are very remarkably developed, expanding terminally 
into large laminew, a condition I have only seen in one other 
genus of the Family Colubride, viz.. Bungarus. These 
lamin are oblique, so that the anterior edge overlaps the 
posterior edge of the lamina of the preceding vertebra. The 
neural spine is slightly bifid, each lateral plate being everted 
so as to leave a shallow groove between. 
Bangalore, July 20, 1920. Hs WiAGiE: 
Notes on some Ceylon Snakes recently acquired by the Colombo 
Museum.—Among a collection of Ceylon snakes recently 
submitted to me for identification by Dr. Pearson, I find the 
following that are worthy of note :— 
Rhinophis trevelyanus ? (Kelaart)—A specimen of this 
genus that I feel much tempted to pronounce a new species 
was obtained at Mullaittivu in the low-country of the 
Northern Province in April this year. It does not accord with 
any species in Mr. Boulenger’s Catalogue (Vol. I., 1890), and 
it is noteworthy that all the Ceylon representatives cited in 
the work referred to are up-country snakes known from the 
Central Province. The fact that there is only a single speci- 
men upon which to base an opinion deters me from describing 
this as new, and I therefor : refer it provisionally to trevelyanus, 
to which it appears to me most closely related. It is a male 
specimen 248 mm. in length. The costals are in 19 rows 
anteriorly and 17 in midbody and posteriorly. The ventrals 
number 205, and the subcaudals 8 (paired). The rostral is 
acutely-pointed, obtusely-keeled above, and measures just 
half the shielded part of the head. The frontal is as long as 
broad, and its length equals that of the parietals. The eye 
is less than half, but more than one-third the horizontal 
diameter of the ocular. The supralabials number four. The 
caudal shield is about three-fourths the length of the shielded 
part of the head. In colour it is blackish, with the margins 
of the scales whitish, those on the ventral aspect being more 
13 6(21)20 
