216 MAJOR F. WALL, 1.M.S., C.M.Z.S. 
tuberculate in large adults, the tubercles often bi- or tridentate. Ventrals,—282 to 
373; entire throughout, except a few posteriorly, twice or less than twice the breadth 
of the !ast costal row. Colour,—olivaceous or greenish dorsally, merging to yellow- 
ish costally and ventrally, or yellowish with dark bars or bands, which may number 
from 34 to 70, but are most usually from 4o to 55. I group the various forms as 
follows, and it will be noticed how very alike the varieties of this are to those of 
cyanocincta :— 
Group (A) completely banded. ‘The bands are very variable. In some examples 
they are narrow throughout, in others broad. In some they are of even breadth from 
dorsum to ventrum; in others dilated vertebrally ; in others tapering ventrally. Some 
of the posterior ones are interrupted costally in some specimens. In some instances 
the black is only preserved for a variable depth dorsally, but the indication of the 
completely black band of younger days can, though faint, be distinctly traced ventrally, 
and also the ventral connecting band so commonly retained in adult life. 
In some the bands are discrete vertebrally and ventrally, and in others more or 
less confluent, especially ventrally, where a broad stripe very frequently passes from 
the throat to a variable extent backwards, and not uncommonly in the whole length 
of the snake. 
(1) brugmansivi (Boie).— Bands narrower than interspaces; no vertebral nor 
ventral spots. Itis one of the commonest varieties. vobusta (Gunther), 
bishopi (Murray), and melanocephalus (Gray) I place here. 
The form is very analogous to var. B of cyanocincta. 
(2) spiralis (Shaw).—Differing from the last only in exhibiting one or more 
vertebral spots placed singly in the interspaces. There are usually a few 
only anteriorly or posteriorly, but a regular series is exceptional. 
In fig. 26 on plate vii these are not visible at all. It is from a specimen 
so labelled in the British Museum. 
(3) Similar to the last, with in addition a series of similarly placed ventral spots, 
which may be as variable in number as the vertebral series of the last. 
It is an unusual form. The only example I have seen, an adult, is in the 
Colombo Museum (No. 113). The vertebral and ventral spots are very 
black, and form unusually regular series. 
(4) Bands nearly as broad, or broader than the light intervals, and frequently 
connected in part, or wholly, by a broad ventral stripe of black. Head 
black. With this I place melanosoma (Giinther) (see fig. 27 on plate viii), 
flower’ (Boulenger), and alcocki (Wall). It is rather an unusual variety 
analogous to variety A of cyanocincta. 
(5) swubcincta (Gray)..—With a series of costal spots. An unusual variety, the 
type of which is from the Indian Ocean. It is analogous to variety 4 
of ornata, and somewhat like variety D(a) of cyanocincta. 
(6) Barred dorsally but no costal spots. The type-specimen is from the 
Indian Ocean. With this I place the temporalis of Blanford, the type of 
which came from the Persian Coast, and /ongiceps (Ginther). I have 
