552 PROTOZOOLOGY 



Genus Metamera Duke. Epimerite eccentric, bordered with 

 many branched digitiform processes; cysts without ducts; spores 

 biconical (Duke, 1910). 



M. schubergi D. (Fig. 235, n). Sporadins 150m by 45m; spores 9m 

 by 7m; in gut of the leeches, Glossosiphonia complanata and Placob- 

 della marginata. 



M. reynoldsi Jones. Sporadins with epimerite measure 280m by 

 50m; cysts spherical; dehiscence by rupture; spore biconical, 5m by 

 3m, with 8 sporozoites; in the stomach diverticula and intestine of 

 Glossosiphonia complanata. 



Genus Hentschelia Mackinnon and 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. 



H. thalassemae M. and R. (Fig. 235, o, p). Cephalins 75-98m by 

 30-45m", in gut of Thalassema neptuni (Mackinnon and Ray, 1931). 



Genus Lecythion Mackinnon and Ray. Epimerite a low cone, sur- 

 rounded by 14-15 petal -shaped lobes, with a neck; cysts and spores 

 unknown. 



L. thalassemae M. and R. (Fig. 235, q. r). Cephalins 135m by 52m; 

 epimerite about 27m long; in gut of Thalassema neptuni. 



Family 10 Stylocephalidae Ellis 



Sporadins solitary; epimerite varied; pseudocysts; hat-shaped 

 spores in chains. 



Genus Stylocephalus Ellis. Epimerite nipple-like; cysts covered 

 with papillae; in arthropods and molluscs. 



S. giganteus E. (Fig. 236, a). Sporadins 1.2-1.8 mm. long; cysts 

 spherical, 450m in diameter; spores subspherical black, 11m by 7m; 

 in Eleodes sp., Asida opaca, A. sp., and Eusattus sp. (Coleoptera) 

 (Ellis, 1912). 



Genus Bulbocephalus Watson. Epimerite a dilated papilla located 

 in middle of a long neck( Watson, 1916a). 



B. elongatus W. (Fig. 236, b). Sporadins up to 1.6 mm. by 50m; 

 nucleus diagonal; cysts and spores unknown; in gut of Cucujus larva 

 (acoleopteran). 



Genus Sphaerorhynchus Labbe. Epimerite a small sphere at end 

 of a long neck. 



S. ophioides (Schneider). Cephalins 1.3 mm. long; epimerite 220m 

 long; terminal part 8.5m; sporadins 3-4 mm. long; in gut of Acis sp. 



