PARASITIC PROTOZOA FROM CEYLON. 71 
12. Lycodon aulicus.—A single young individual (Colombo, 
Aug.). 
13. Oligodon sublineatus——Four individuals from Peradeniya 
(Aug. and Sept.). 
14. Python reticulatus.*—A single snake caught in Colombo 
(July). 
15. Tropidonotus asperrimus (= 7. piscator)—One individual 
from Colombo (Aug.), five from Trincomalee (Sept.), and four from 
Colombo (Sept.). 
16. Viper russelliiA single young specimen (Peradeniya, 
Sept.). 
Comments.—Hemogregarines have not been previously recorded 
from Dipsadomorphus forstenit or from D. ceylonensis. Heemogre- 
garines are recorded already from Zemanis mucosus and Dryophis 
mycterizans in India by Patton (1908), and from Z. mucosus in Ceylon 
by Miss Robertson (1908). The latter also found hemogregarines 
in three other Ceylon snakes: Chrysopelea ornata, Naia tripudians, 
and “a large python.” 
A hemogregarine has been described from Naia tripudians by 
Simond (1901), Laveran (1902), and Patton (1908). Patton (1908) 
gives a list of eleven Indian species of snake which harbour hemo- 
gregarines. 
I did not succeed in finding Hemogregarina mirabilis (Castellani 
and Willey) in Tropidonotus asperrimus. 
Birps. 
The only bird I examined was a kingfisher shot at Peradeniya. 
No Protozoa were found in its blood. Castellani and Willey (1905) 
record Hemoproteus (Halteridium) from the blood of crows (Corvus 
splendens and C. macrorhynchus), from the babbler (Crateropus 
striatus), and from the owl (Scops bakkamena). 
MAMMALS. 
I examined very few mammals. None showed Protozoa in the 
blood. 
Uninfected. 
1. Funambulus palmarum.—A single individual (Colombo, July). 
2. Lepus nigricollis—One young individual (Peradeniya, Sept.). 
3. Pteropus medius.—A single specimen (Peradeniya, Sept.). 
4. Tragulus meminna.—Two individuals (Colombo, Aug.). A 
peculiarity in the blood corpuscles of these animals seems worthy of 
record. It was found that, although the leucocytes are large, the 
red corpuscles are extremely small. In fact, I have never encoun- 
tered such small erythrocytes in any animal before. In 7’. meminna 
they have a diameter of only about 2°5 u. 

* This, of course, is not a native Ceylon snake, It is not known how it 
came to be in Colombo, 
