404 PROTOZOOLOGY 



with a milled border and a stout style projecting from center; 

 spore cylindrobiconical; in Neuroptera and Coleoptera. 



A. philica (Leidy) (Fig. 182, g). Sporadins 300/i-2 mm. long; 

 cysts and spores unknown; in gut of Nydobates pennsylvanica. 



Genus Steinina Leger et Duboscq. Solitary; epimerite a short 

 motile digitiform process, changing into a flattened structure; 

 spore biconical; in Coleoptera. 



S. rotunda Watson (Fig. 182, r). Sporadins 180-250/x long; in 

 gut of Amara augustata (Coleoptera). 



Genus Pileocephalus Schneider. Epimerite lance-shaped, with 

 a short neck. 



P. striatus Leger et Duboscq (Fig. 182, s). Sporadins 150ai long; 

 nucleus in protomerite; cysts spherical; in gut of larvae of Ptych- 

 optera contaminata. 



Genus Stylocystis Leger. Epimerite a sharply pointed, curved 

 process; spores biconical. 



S. praecox L. (Fig. 182, t). Sporadins up to 500/i long; cysts 

 ovoidal, 200/i long; spores Sfx by 5m; in gut of larval Tanypus sp. 



Genus Discorhynchus Labbe. Epimerite a large spheroidal 

 papilla with collar and short neck; spores biconical, sUghtly 

 curved. 



D. truncatus (Leger) (Fig. 183, a, 6). Sporadins BOO/i long; cysts 

 spherical, 140^ in diameter; in gut of larvae of Sericostoma sp. 



Genus Anthorhynchus Labbe. Epimerite a large flattened 

 fluted disc; spores biconical, chained laterally. 



A. sophiae (Schneider) (Fig. 183, c, d). CephaKns up to 2 mm. 

 long, with 200/i long epimerite; protomerite 150^ long; endoplasm 

 opaque; spores 7^ by 5n; in gut of Phalangiuni opilio. 



Genus Sciadiophora Labbe. Epimerite a large sessile disc with 

 crenulate border; protomerite with numerous vertical lamina- 

 tions; spores biconical. 



S. phalangii (Leger) (Fig. 183, e~g). Sporadins 2-2.5 mm. long; 

 protomerite with 15-16 plates; cysts 500/i in diameter; spores 9n 

 by 5/x; in gut of Phalangium crassum and P. cornutum (Arach- 

 nida). 



Genus Amphorocephalus Ellis. Epimerite a sessile peripherally 

 fluted disc set upon a short neck; protomerite constricted super- 

 ficially; spores unjinown. 



A. amphorellus E. (Fig. 183, h). Sporadins 500-970/i long; in 

 gut of Scolopendra heros. 



