HYDROPHID4 IN COLOMBO MUSEUM. 169 
on the right side in specimens B and D, where they fail to do so. 
Postoculars : two. Anterior temporals : one, succeeded by another 
subequal shield. Sublinguals : two pairs, the posterior separated 
by two small scales. /nfralabials : the fifth is the largest of the 
series and touches three or four scales behind ; suture between 
first longer than that between the anterior sublinguals. Mar- 
ginals : none occur between the first five infralabials. Ventrals - 
distinct throughout, a few here and there divided. 
TIrregularities—-A specimen has eight labials on the right side 
and seven on the left. The third, fourth, and fifth touch the eye. 
The scales are juxtaposed posteriorly. Fifty-one broad black 
bars ornament the dorsum, below which, and alternating with 
them, is a series of vertical costal spots. 
B has eight labials on the left side and seven on the right ; 
the third, fourth, and fifth touch the eye on the left side, the 
third and fourth only on the right. The scales posteriorly are 
subimbricate. Forty-five bars dorsally. 
© has seven labials on the right side, eight on the left; the 
third and fourth touch the eye on the right side, the third, 
fourth, and fifth on the left side. The scales are subimbricate 
ventrally behind, juxtaposed dorsally. There are forty-one bars 
dorsally. 
D has seven labials, with the third and fourth touching the eye 
on both sides. The scales are juxtaposed posteriorly, and there 
are forty-one dorsal bars. The posterior ek are so small 
that they do not deserve the name. 
A, B, and C are evidently the specimens referred to by Haly 
(Catalogue, 1891, No. 127). 
Scales. 

Anterior. Mid-body. Posterior. Ventrals. Museum No. 
PSG.) i: AB? ere On Sync ZOU cars 127 .. Adult 
Le ee Pen Bis hg Pele eid BT) EAS do. 
GSO 2. AS bs Ae at 269) 127. oe Young 
a og 44-year, @Y ou. (2?) .. Adult 
Distira Brugmansi (Boie)=D. robusta (Gtinther). 
Represented by five specimens, which agree in the following 
respects :—Rostral : visible portion above half to two-thirds the 
suture between the nasals. Prefrontals touch the second labial. 
Anterior temporal: one. Labials: seven, the third and fourth 
touching the eye. Sublinguals : two pairs, the posterior in contact. 
Infralabials : the fourth is the largest of the series, and in contact 
with three scales behind. Scales: imbricate in whole body. 
Ventrals : distinct throughout: a few here and there divided. 
