SPECIAL PROTOZOOLOGICAL STUDIES OF THE BLOOD 49] 
Plasmodia of Lizard. 
P. agamae Wenyon, 1909, in Agama colonorum. 
P. giganteum n. sp. in Agama colonorum. 
Genus Haemoproteus. 
Haemoproteus sp. in Gymnobucco calvus. 
Haemoproteus sp. in Pyromelana hordacea. 
Haemoproteus sp. in Halcyon senegalensis. 
Haemoproteus sp. in Melittophagus gularis. 
‘“ Haemogregarines.”’ 
Haemogregarine in the snake Dendraspis viridis. 
Haemogregarine in the crocodile Crocodylus cataphractus. 
Haemogregarine in the crocodile Osteolaemus tetraspis. 
“Grahamella.”’ 
Grahamella in the bat, Petalia grandis. 
Grahamella in the rat, Praomys tullbergi. 
PLASMODIA OF MONKEYS 
Malarial parasites were seen in two species of monkey, viz. Cercopithecus diana 
and Cercopithecus nictitans.1. Numerous observers have described plasmodial 
infections in monkeys belonging to the genus Cercopithecus. The first organism 
of this type was seen by Koch.? Malarial organisms have been described in 
Cercopithecus sabaeus, C. fuliginosus, C. albogularis, C. cephus, and C. mona.* 
This parasite was named Haemamoeba kochi by Laveran.* According to Wenyon 
this species is a common parasite of monkeys belonging to the genera Cercopithe- 
cus, Cynocephalus, and Cercocebus in tropical Africa. 
Plasmodium of Cercopithecus diana 
Three different specimens of Cercopithecus diana from three fairly widely- 
separated localities in Liberia were examined. In each plasmodial organisms 
were seen which in all probability belonged to the same species. In two, only 
rare gametocytes were available for study. In the blood of the third monkey, 
a fairly intense infection was present, but unfortunately this monkey had 
been dead several hours and decomposition had set in. Different stages in 
the development of the parasite as observed in the last monkey, are illus- 
trated in No. 400, Figs. 9-13. A study of these figures shows a resemblance to 
Plasmodium vivax of man. There is a tendency for the parasitized red cell to 
enlarge — but this is not marked. No fully-developed schizonts were seen, 
nor was there anything resembling Schiffner’s dots present. In view of the 
close resemblance between this organism and the published accounts and fig- 
ures of Plasmodium kochi, we feel that in all probability the specimens of Cer- 
copithecus diana which we examined were infected with the same species. 
1 Plasmodia were also found in Colobus rufomitratus in the Belgian Congo. 
2 Koch, R.: Reiseberichte iiber Rinderpest, Bubonenpest in Indien und Afrika, Tsetse-oder Surra 
Krankheit, Texas fieber, tropische Malaria, Schwarzwasserfieber. Berlin, 1898. 
3 Wenyon, C. M.: ‘““Protozoology” (1926), II, 969. . | : 
4 Laveran, A.: Les hématozaires endoglobulaires (Haemocytozoa). Cinq. d. |. Soc. Biol. (1899), 
vol. jub. 124. 
