562 BIOLOGY OF THE PROTOZOA 



Family 2. Gregarinidae Labbe 1899. 

 10. Individuals in groups of 2 or 3; epimerite 



a forked style Genus Uradiophora Mercier 



Individuals in groups of 2 to 12; epimerite 



a small papilla Genus Hirmocystis Labbe 



Family 3. Didymophyidae Leger 1892. 



One genus— D. gigantea Stein Genus Didymophyes Stein 



Family 4. Dactylophoridae Leger 1892. 



1. Protomerite long, neck-like Genus Trichorhynchus Schneider 



Pro torn erite flattened; epimerite long fila- 

 ments 2 



2. Protomerite symmetrical ; drawn out in two 



processes Genus Nina Grebnecki 



Protomerite asymmetrical Genus Echinomera Labb6 



Family 5. Actinocephalidae Leger. 



1 . Sporonts with one or more septa 2 



Sporonts without septum— protomerite 



early lost, deutomerite alone Genus Schneideria 



2. Sporonts with one septum 3 



Sporonts with several septa 



1. Epimerite lobed Genus Rhynchocystis Keilin 



2. Epimerite simple Genus Taeniocystis Leger 



3. Septum convex towards protomerite 4 



Septum flat 6 



4. Protomerite with small epimerite bearing 



6 long filaments Genus Bothriopsides Strand 



Epimerite without long filaments 5 



5. Protomerite dilated anteriorly and massive 



Genus Legeria Labbe 

 Protomerite a circular, shallow disc . Genus Coleorhynchus Labbe 



6. Epimerite simple styliform process 7 



Epimerite without style 13 



7. Epimerite finger-form, conical or lance- 



shape 8 



Styliform process arises from epimerite 

 base 10 



8. Epimerite finger-form changing to flat 



button Genus Steinina 



Leger and Duboscq 

 Epimerite conical or lance-shape 9 



9. Epimerite a simple sharply-pointed cone 



Genus Stylocystis Leger 

 Epimerite lance-shape Genus Pyocephalus Schneider 



10. Epimerite a tuft of bristles on a long neck 



Genus Geneiorhynchus Schneider 

 Epimerite without long bristles 11 



11. Epimerite discoid with style from center. . 12 

 Epimerite spiny, globular with long apical 



style Genus Beloides Labbe 



12. Epimerite long thread-like Genus Pyxinia Hammerschmidt 



Epimerite thick disc with milled border 



Genus Asterophora 



13. Epimerite on long neck-like process of pro- 



tomerite 14 



Epimerite on short neck, or sessile, usually 

 with hooks 15 



