MORPHOLOGY AND TAXONOMY OF THE SPOROZOA 563 



Family 5. Actinocephalidae Leger. 



r Genus Agrippina 



14. Epimerite button-like with 8 to 10 I spores ellipsoid 



finger-form processes | Genus Hoplorhynchus ^ 



{ spores biconical 



Epimerite cushion-like with short teeth 



Genus Phialoides Labbe 



15. Epimerite flat sessile, with 8 to 10 short, 



sharp spines Genus Actinocephalus Stein 



Epimerite globular or swollen 16 



16. Epimerite like half-open umbrella. . .Genus Sciadiophora Labbe 

 Epimerite globular, fluted, or with collar. . 17 



17. Epimerite with collar, on short stalk 



Genus Discorhynchus 

 Epimerite without collar; fluted or smooth . 18 



18. Epimerite depressed anteriorly or flat. ... 19 



Epimerite globular, not depressed. .Genus Amphoroides Labbe 



19. Epimerite flat, fluted Genus Anthorhynchus Labbe 



Epimerite spheroidal, depressed anterior. . 20 



20. Fluting confined to concavity Genus Amphorocephalus Ellis 



Fluting deep, on sides Genus Stictospora Leger 



Family 6. Menosporidae Leger 1892. 



One genus— M. polyacantha Leger .... Genus Menospora 

 Family 7. Stylocephalidae Ellis 1912 (Stylorhynchidae Labbe) 



Includes Stylorhynchus pre-occup.; changed to 

 Stylocephalus Ellis 



1. Epimerite on long slender neck 2 



Epimerite sessile or on short neck 3 



2. Spores oval Genus Sphaerocystis Labbe 



Spores hat-shape Genus Stylocephalus Ellis 



3. Epimerite a crateriform disc with club- 



shaped processes Genus Lophocephalus Labbe 



Epimerite a lance-shaped papilla on short 



neck Genus Cystocephalus Schneider 



Family 8. Acanthosporidae Leger 1892. 



1. Sporocysts with polar but without equa- 



torial spines Genus Corycella Leger 



Sporocysts with both polar and equatorial 

 spines 2 



2. Sporocysts with 2 rows of equatorial spines 



Genus Cometoides Labbe 

 Sporocysts with 1 row of equatorial spines . 3 



3. Epimerite a conical papilla without proc- 



esses Genus Acanthospora Leger 



Epimerite spheroidal with 5 to 10 finger- 

 form processes Genus Ancyrophora Leger 



Order 2. Schizogregarinida Leger 1892. 



1. Sporozoites in sporocysts less than 8 2 



Sporozoites in sporocysts 8 4 



2. Sporozoites in sporocysts 4; many sporo- 



cysts Genus Selenidium Giard 



Sporozoites in sporocysts 1 3 



3. Trophozoite coiled in flat spiral .... Genus Spirocystis 



Leger and Duboscq 

 Trophozoite not coiled; elongate (2 hosts) 



Genus Porospora Schneider 



