400 PROTOZOOLOGY 



orange; cysts 200-250/^ in diameter; spores 16ai by 6.5m; in gut of 

 Geophiles sp. and Stigmatog aster gracilis. 



Genus Dendrorhynchus Keilin. Elongate; epimerite a disc, sur- 

 rounded by numerous ramified papillae; transverse fibrils con- 

 spicuous; cysts elliptical; spores fusiform. 



D. system K. (Fig. 181, h). Sporadins 255m by 18.5-20/x; 

 spores 18-1 9m by 7m; in midgut of larvae of Systenus sp., a doli- 

 chopodid fly, found in decomposed sap of elm tree. 



Genus Trichorhynchus Schneider. Protomerite prolonged an- 

 teriorly into a long neck, dilated at tip; pseudocyst; spores 

 cylindrical to ellipsoidal. 



T. pulcher S. (Fig. 181, i). Cysts 303-316m in diameter; spores 

 9.7m by 5.8m; in gut of Scutigera sp. 



Genus Nina Grebnecki (Pterocephalus Schneider). Protomerite 

 made up of 2 long narrow horizontal lobes fused and upturned 

 spirally at one end, peripheral portion with many teeth, from 

 which project long filaments; spores in chain; in gut of myria- 

 pods. 



N. gracilis G. (Fig. 181, j, k). 4-5 mm. long; cysts spherical; 

 spores ellipsoidal, in chain; in gut of Scolopendra cingulata. 



Genus Seticephalus Kamm. Protomerite with closely set brush- 

 like bristles. 



S. elegans (Pinto) (Fig. 181, I). Sporadins up to 75m by 35m; 

 cysts and spores unknown; in gut of Scolopendra sp. 



Genus Acutispora Crawley. Sohtary; pseudocyst; spore bicon- 

 ical, with a thick blunt endosporal rod at each end. One species. 



A. macrocephala C. (Fig. 181, m). Sporadins up to 600m long; 

 cysts spherical, 410m in diameter; spores navicular, slightly 

 curved, 19m by 4m; in gut of Lithohius forficatus. 



Genus Metamera Duke. Epimerite eccentric, bordered with 

 many branched digitiform processes; cysts without ducts; spores 

 biconical. 



M. schuhergi D. (Fig. 181, 7i). Sporadins 150m by 45m; spores 

 9m by 7m; in gut of Glossosiphonia complanata and Placohdella 

 marginata. 



Genus Hentschelia Mackinnon et Ray. Epimerite with a short 

 neck, umbrella-like with its margin divided into 4-5 lobes, each 

 fluted on anterior surface; 2 sporadins encyst together; gametes 

 anisogamous; flagellate and non-flagellate; zygote gives rise to a 

 spherical spore with 8 sporozoites. One species. 



