The President's Address. By H. G. Plimmer 



145 



Hjemogregarines in the Blood of Reptiles — continued. 



5 Indian Rat Snakes — Zamenis mucosus 

 ^sculapian Snake — Coluber longissimus 



2 Common Boas — Boa constrictor . . 



Reeve's Terrapin — Damonia reevesi 



Reticulated Python — Python reticulatus 



4 Chicken Snakes — Coluber ohsoletus . . 

 2 Corn Snakes — Coluber guttatus . . 

 Banded-tailed Snake — Leptophis liocercus 



4 Spiny-tailed Iguanas — Cyclura acan- 

 thura 



3 Coach-whip Snakes — Zamenis flagelli- 

 formis 



3 Pond Tortoises — Emys orbicularis 



Painted Terrapin — Chrysemys picta 



Smaller Rattlesnake — Sistrurus miliarius 

 Boddaert's Snake — Drymobius boddaerti 



3 Black Snakes — Zamenis constrictor , . 

 Hog-nosed Snake — Heterodon simus 



Moccasin Snake — Tropidonotus fasciatus 

 Pine Snake — Pituophis sayi 



4 Giant Toads — Bufo niarinus 



2 Spanish Terrapins — Clemmys leprosa 

 Horrid Rattlesnake — Crotalus horridxis 



4 BelVs Cinixys — -Cinixys belliana 

 Black Sternothere — Sternothxrus niger 

 Hasselquisf s Gecko — Ptyodactylus loba- 



tus 



2 Speckled Terrapins — Clemmys guttata 



Green Tree Viper — Atheries chlorechis . . 



Three-keeled Terrapin — Staurotypus tri- 



porcatus 



Habitat 

 India 



Europe 



S. America 



China 



E. Indies 



N. America 



do. 

 S. America 



C. America 



N. America 



S. Europe 



Character 



Medium sized ; cells 

 unaltered 



Medium sized ; ad- 

 herent to nucleus of 

 host-ceU 



Long and hooked ; 

 some cells enlarged 



Short, thick, with ex- 

 centric nuclei 



Long, doubled over ; 

 cells enlarged 



Host-cells enlarged 



Host-cells enlarged 



Medium ; cells un- 

 altered 



Large and granular ; 

 cell nearly filled ; 

 nucleus compressed 

 and dense 



Host-cells deformed ; 



parasites long and 



hooked at one end, 



later doubled over 

 Short and thick, with 



excentric nuclei ; a 



few very thin and 



doubled over 

 Short and thick, with 



granules ; cells de- 

 formed 

 Long and thick, with 



excentric nuclei 

 Bulky and hooked ; 



cells deformed 



Large and hooked ; 



cells deformed 

 Long; cells enlarged, 



and ultimately de- 



hfemoglobinized 

 Thin and long forms ; 



cells unaltered 

 Host-cells enlarged 



and dehaemoglobi- 



nized 

 Short and thick ; cells 



unaltered 

 Bulky ; cells deformed 

 Long and thin ; cells 



unaltered 

 Short, thick 

 Medium sized 



Short ; cells deformed 

 Short, bulky ; nu- 

 cleus excentric 

 Long and thin 



Medium 



