146 



Transactions of the Society. 



H^MOGREGARTNES FOUND IN THE Blood OF REPTILES — Continued. 



Egyptian Gecko — Tarentola annularis. . 



Hilarie's Terrapin — Hydraspis hilarii 

 4 Eyed Lizards — Lacerta ocellata 



Nilotic Monitor — Varanus niloticus 

 2 Cook's Tree Boas — Corallus cooki 



Habitat. 

 Egypt 



Brazil 

 S. Europe 



Africa 

 W. Indies 



Green Tree Snake — Dendraspis viridis W. Africa 



2 Russell's Vipers — Vipera russelli . . India 



2 Eryxs — Eryx johni do. . 



3 Dahl's Snakes — Zamenis dahli . . . . S. Europe 



Confluent Rattlesnake — Crotalus con- 



fluentus N. America 



Glass Snake — Ophisaurus apus . . . . S. Europe 



Long-nosed Viper — Vipera ammodytes . . do. 



Tubcrculated Iguana — Iguana tuher- 



culata C. America 



Peloponnesian Lizard— Lacerta pelopo- 



nesiaca S. Europe 



Madagascar Boa — Boa madagascariensis Madagascar 



West African Python — Python sebcB . . Tropical Africa 

 2 Dark-green Snakes — Zamensis gemo- 



neyisis Europe 



Character. 



Short, bulky ; cells de- 

 formed 



Long, doubled over 



Host cells enlarged, 

 and some dehsemo- 

 globinized. Long, 

 thin ; some bottle- 

 shaped 



Medium, thick 



Host-cells deformed ; 

 short, nucleus not 

 central 



Large, often two in 

 cell, which is not en- 

 larged 



Bulky; cells deformed 



Long, with hooked 

 end 



Long, thin ; turned 

 over at both ends 



Long, doubled over 

 Large and granular ; 

 host-cells elongated 

 Bulky ; cells not en- 

 larged 



Short, stout, 

 times round 



some- 



Square-marked Toad — Bufo regularis 



Africa 



Short 



Short, thick ; cells de- 

 formed ; schizogony 

 found in liver 



Medium sized 



Cells enlarged and 

 dehaemoglobinized : 

 parasites long and 

 thin 



Short and very thick 



I now come to the Plasmodidise to which the various malarias 

 belong, and will then take finally two groups of parasites whose 

 position is not yet determined with certainty, namely Hmnoproteus 

 and Leucocytozoon . 



I have found only one mammalian malaria in a Green Monkey, 

 which is probably Plasmodium Kochi. It is uncertain, because I 

 could only get certain stages. The host-cells do not seem to be 

 greatly altered. 



In the birds there are two kinds of intra-corpuscular parasites 

 which have been sometimes confused, but they are really entirely 

 distinct. The Plasmodium prsecox has many points of similarity to 

 the parasites of human malaria, and in many stages is so like that 



