442 PROTOZOOLOGY 



ducts; spores oval, with 4 sporozoites, 9/i by 7ju; reduction zygotic, 

 6 chromosomes; in gut of Urechis cawpo in California. 



Genus Ulivina Mingazzini. Elongate ellipsoid; epimerite simple; 

 spores unknown; in gut of polychaetes. 



U. rhynchoboli (Crawley). Sporadins up to 700/i long; in Rhyncho- 

 bolus americanus. 



Family 2 Cephaloidophoridae Kamm 



Development intracellular; early association; cysts without spo- 

 roducts; spores ovoidal, with equatorial line; in gut of Crustacea. 



Genus Cephaloidophora Mawrodiadi. Sporadins biassociative, 

 early; epimerite rudimentary; cysts without sporoducts; spores in 

 chain, ovoidal. 



C. olivia (Watson) (Fig. 206,/). Biassociated sporadins up to 218^ 

 long; individuals up to 118/i by 36/i; cysts spheroidal, 60/z in diame- 

 ter; spores (?) ; in gut of Libinia dubia; Long Island. 



C. nigrofusca (Watson). Sporadins, ovoid to rectangular, up to 

 125/i by 75/i; cysts and spores (?); in gut of Uca pugnax and U. 

 pugilator. 



Family 3 Stenophoridae Leger and Duboscq 



Development intracellular; sporadins solitary; with a simple 

 epimerite or none; cysts open by rupture; spores ovoid, with or 

 without equatorial line, not extruded in chain; in Diplopoda. 



Genus Stenophora Labbe. With or without simple epimerite; 

 spores ovoid with equatorial line, not in chain. 



S. larvata (Leidy) (Fig. 206, g). Sporadins up to 800^ by 23^; 

 protomerite small; in gut of Spirobolus spinigerus at Philadelphia. 



S. robusta Ellis (Fig. 206, h). Sporadins 140-180m by 67/^; cysts and 

 spores both unobserved; in gut of Parajulus venustus, Orihomorpha 

 gracilis and 0. sp.; Colorado. 



Genus Fonsecaia Pinto. Spores elongate ovoid; without equa- 

 torial line; without endospore. 



F. polymorpha Pinto (Fig. 206, i, j). Sporadins 170/1 long; spores 

 18/i by Sjjl; in gut of Orihomorpha gracilis; Brazil. 



Family 4 Didymophyidae Leger 



Two to three sporadins in association; satellite without septum. 

 Genus Didymophyes Stein. Epimerite a small pointed papilla; 

 cysts spherical, open by rupture; spores ellipsoidal. 



D. gigantea S. Sporadins slender, 1 cm. by 80-100//; 2 deuto- 

 merites; cysts spherical, 600-700/i in diameter; spores oval, 6.5/: by 



