68 SPOLIA ZEYLANICA. 
its way out again into the blood plasma. The curious method of 
entry by being engulfed by the corpuscle—recently described in 
detail by Neresheimer (1909) in Lankesterella—I never saw. 
. Figures of some of the forms of the hemogregarine encountered 
are given in Plate II., figs. 3-8. 
Berestneff also eeorted a trypanosome from the Indian frogs. 
No name was given to it, and as I believe other observers have also 
seen this same parasite, which is probably the same as the one I 
found in Ceylon, I have contented myself with a brief description 
and figure of the organism, without bestowing a new name upon it. 
(See p. 74.) 
REPTILES. 
I had opportunities of examining the blood of a number of 
different reptiles, including crocodiles, tortoises, lizards, and snakes. 
The results obtained are as follows :— 
CROCODILES. 
I was able to examine the blood of two crocodiles, Crocodilus 
porosus. The first, a small specimen from Dadugan-oya, Veyangoda 
(July), contained a hemogregarine. (See p.79.) The second, a very 
young individual from Ja-ela, near Colombo (Sept.), was negative. 
No hemogregarines have been described from Ceylon crocodiles 
before, though several other crocodiles from other parts of the 
world have been found to harbour these parasites. (See p. 79.) 
TORTOISES. 
The three following species of tortoise were examined :— 
1. Emyda vittata. — Of five specimens examined in Colombo (July), 
the presence of trypanosomes could be demonstrated in only one 
individual, and in very small numbers. 
2. Nicoria trijuga.—Three individuals from Colombo lake (July) : 
one heavily infected with hzmogregarines, one slightly infected, 
and one in which no parasites could be detected. : 
3. Testudo elegans ——Two individuals from Sigiriya (Sept.) 
showed no blood parasites. 
Comments —The trypanosome found in Hmyda vittata is that 
already described by Miss Robertson under the name 7’. vittate 
[Robertson (1908) and (1909) ]. The hemogregarine from Nicoria is 
H. nicorie (Castellani and Willey, 1904). 
LIZARDS. 
Examination of the blood of twelve species of Lacertilia gave the 
following results :— 
A.—Infected. 
1. Hemidactylus leschenaultiti—At Trincomalee (Sept.) nearly 
every individual examined was infected with Hamocystidium 
