444 PROTOZOOLOGY 



open by sporoducts; in gut of arthropods. Numerous species. 



G. hlattarum Siebold (Fig. 206, k). Sporadins in syzygy, 500-1 100m 

 by 160-400At; cysts spherical or ovoidal; 8-10 sporoducts; spores 

 cylindrical to dolioform, truncate at ends, 8-8. 5^ by 3.5-4/z; in gut 

 of the cockroach. Sprague (1941) made an excellent study of this 

 gregarine. 



G. locustae Lankester (Fig. 206, I). Sporadins 150-350^ long; 

 syzygy; in Dissosteria Carolina. 



G. oviceps Diesing (Fig. 206, m). Sporadins up to SOO/x by 225iu; 

 in syzygy; spherical cysts 250ai in diameter; 2-5 sporoducts up to 1 

 mm. long; spores dolioform. 4.5/i by 2.25^; in Gryllus ahhreviatus and 

 G. americanus. 



Genus Protomagalhaesia Pinto. Sporadins cylindrical; in syzygy, 

 protomerite of satellite draws in the posterior end of primite; cysts 

 without ducts; spores dolioform, with spines at ends. 



P. serpentula (Magalhaes) (Fig. 206, n). Sporadins up to 1.2 mm. 

 by 180/i; in gut and coelom of Blatta orientalis. 



Genus Gamocystis Schneider, Septate only in trophozoites; spo- 

 radins non-septate; in syzygy; spore formation partial; with sporo- 

 ducts; spores cylindrical. A few species. 



G. tenax S. (Fig. 206, 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 SOO/z long; cysts, yellow, 60^ in diame- 

 ter; spores 8.7/1 by Qn; in gut of Machilis cylindrica. 



Genus Hirmocystis Labb6. Sporadins associative, 2-12 or more; 

 with a small cylindrical papilla-like epimerite; cysts without ducts; 

 spores ovoidal. 



H. harpali Watson (Fig. 207, a). Total length of association up 

 to 1060/1; sporadins up to 560/i by SO/i; cysts unknown; in gut of 

 Harpalus pennsylvanicus erythropus. 



H. termitis (Leidy) (Fig. 207, 6). Associtation 614-803/x long; 

 epimerite 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. 



U. cuenoti M. 2-4 sporadins in syzygy; individuals up to 700m 

 long; cysts ovoid, 44/t long; spores 4/i in diameter; in gut of Aiyae- 

 phrya desmaresii. 



