274 HANDBOOK OF PROTOZOOLOGY 



C. Eimeria in Amphibians 



Eimeria ranarum (Labbe) (Fig. 113, j), E. prevoti (Laveran 

 and Mesnil) (Fig. 113, /), and E. ranae Dobell (Fig. 113, k) 

 have been found in the gut-epitheUum of the frog. 



Eimeria neglecta Noller. In the gut of the tadpole. 



D. Eimeria in Fish 



Not infrequently fish are infected by species of Eimeria. 

 When such fish are used for food, coccidian oocysts occurring 

 in them, may appear in human feces and may be mistaken as 

 human parasites. 



Eimeria sardinae (Thelohan) (Fig. 113, m). In the testis 

 of the sardine. Finding the oocysts which measure 30 to 50 

 microns in diameter in human stools, Dobell named it Eimeria 

 oxyspora. 



Eimeria clupearum (Thelohan) (Fig. 113, n). In the liver 

 of herrings, mackerels, and sprats. The oocyst measures 18 to 

 32) microns in diameter. Dobell found some oocysts of this 

 species in human feces and called it Eimeria wenyoni. 



Genus Jarrina Leger and Hesse. The oocyst is ovoid; one 

 end is rounded, the other drawn out into a short neck. With 

 four spores, each with two sporozoites. 



Jarrina paludosa Leger and Hesse. In the intestine of birds, 

 Fidica atra and Gallinula chloropus. The oocyst measures 15 

 microns by 11 microns. 



Genus Isospora Schneider. The oocyst produces two spores, 

 each containing four sporozoites. 



Isospora hominis (Railliet and Lucet) ( = /. belli Wenyon) 

 (Fig. 114, a-c). In the human intestine. The oocysts observed 

 in the feces measure 25 to Z2) microns long. 



Isospora higemina (Stiles) (Fig. 114, d). In cats and dogs. 

 The oocyst measures 10 to 14 microns by 7 to 9 microns. 



Isospora rivolta (Grassi) (Fig. 114, e). In cats and dogs. 

 The oocyst measures 20 to 25 microns by 15 to 20 microns. 



Isospora felis Wenyon (Fig. 114, /). In cats and dogs. 

 The oocyst measures 39 to 48 microns by 26 to 37 microns. 



Isospora lacazei (Labbe). Many passarine birds seem to 

 be hosts to this coccidian. The oocyst measures 18 to 26 microns 

 by 15 to 20 microns. 



