280 



PROTOZOOLOGY 



fish is not understood; as a rule, only a few individuals are ob- 

 served in the peripheral blood of the host. 



T. grranwZoswm Laveran and Mesnil (Fig. 125, e). In the eel, Anguilla 

 vulgaris; 7 0-80 fj, long. 



T. giganteum Neumann (Fig. 125, d). In Raja oxyrhynchus; 125- 

 ISO/x long. 



T. remaki Laveran and Mesnil (Fig, 125, /). In Esox lucius, E. 

 reticulatus and probably other species; 24-33/x long. 



Fig. 125. a, Trypanosoma rotatorium X750 (Kudo); b, T. inopinaturn, 

 X1180 (Kudo); c, T. diemydyli, X800 (Hegner); d, T. giganteum, 

 X500 (Neumann); e, T. granulosum, XlOOO (Minchin); f, T. remaki, 

 X1650 (Kudo); g, T. percae, XlOOO (Minchin); h, T. danileivskyi, 

 XlOOO (Laveran and Mesnil); i, T. rajae, X1600 (Kudo). 



T. percae Brumpt (Fig. 125, g). In Perca fluviatilis; 45-50/x long. 



T. danilewskyi Laveran and Mesnil (Fig. 125, h). In carp and 

 goldfish; widely distributed; 40^i long. 



T. rajae Laveran and Mesnil (Fig. 125, i). In various species of 

 Raja; 30-35/1 long. 



Genus Crithidia Leger. Parasitic in arthropods and other inverte- 

 brates; blepharoplast located between central nucleus and flagellum- 

 bearing end (Fig. 119); undulating membrane not so well developed 

 as in Trypanosoma; it may lose the flagellum and form a leptomonas 

 or rounded leishmania stage which leaves host intestine with faecal 

 matter and becomes the source of infection in other host animals. 



C. euryophthalmi McCulloch (Fig. 126, a-c). In gut of Eury- 

 ophthalmus convivus; California coast. 



