SPOROZOA, GREGARINIDA 395 



cysts open by sporoducts; in gut of arthropods. Numerous 

 species. 



G. blattarum Siebold (Fig. 179, k). Sporadins in syzygy, 500- 

 llOOju by 160-400iu; cysts spherical or ovoidal; 8-10 sporoducts; 

 spores cyhndrical to doUoform, truncate at ends, 8-8. 5)u by 3.5- 

 4jix; in gut of the cockroach. 



G. locustae Lankester (Fig. 179, /). Sporadins 150-350^ long; 

 syzygy ; in Dissosteria Carolina. 



G. oviceps Diesing (Fig. 179, m). Sporadins up to 500^ by 225/1 ; 

 in syzygy; spherical cysts 250^ in diameter; 2-5 sporoducts up to 

 1 mm. long; spores doHoform, 4.5m by 2.25At; in Gryllus ahbre- 

 viatus and G. americanus. 



Genus Protomagalhaesia Pinto. Sporadins cyhndrical; in 

 syzygy, protomerite of satellite draws in the posterior end of 

 primite ; cysts without ducts ; spores dohof orm, with spines at ends. 



P. serpentula (Magalhaes) (Fig. 179, n). Sporadins up to 1.2 

 mm. by 180yu; in gut and coelom of Blatta orientalis. 



Genus Gamocystis Schneider. Septate only in trophozoites; 

 sporadins non-septate; in syzygy; spore formation partial; with 

 sporoducts; spores cylindrical. A few species. 



G. tenax S. (Fig. 179, o). Association head to head; spherical 

 cysts with 15 or more ducts; spore cylindrical, with rounded ends; 

 in gut of Blattella lapponica. 



Genus Hyalospora Schneider. Sporadins in syzygy; cytoplasm 

 yellowish orange ; epimerite a simple knob ; cysts open by rupture ; 

 spores fusiform. 



H. affinis S. Trophozoites 300 fj. long; cysts, yellow, 60^ in 

 diameter; spores 8.7 fx by 6m ; in gut of Machilis cylindrica. 



Genus Hirmocystis Labbe. Sporadins associative, 2-12 or more; 

 with a small cylindrical papilla-like epimerite; cysts without 

 ducts; spores ovoidal. 



H. harpali Watson (Fig. 180, a). Total length of association 

 up to 1060m; sporadins up to 560 by 80/x; cysts unknown; in gut 

 of Harpalus pennsylvanicus erythropus. 



H. termitis (Leidy) (Fig. 180, h). Association 614-803/i long; 

 epimerite in cephalins simple sphere; cysts rare; spores (?); in 

 Zootermopsis angusticollis, Z. nevadensis, etc. 



Genus Uradiophora Mercier. Sporadins in syzygy; deutomerite 

 with small process; epimerite an elongate papilla; cysts oval 

 without ducts; spores spherical, in chains. 



