SPOROZOA, GREGARINIDA 391 



Family 9 AUantocystidae Bhatia 



Trophozoites elongate cylindrical; cysts elongate, sausage-like; 

 spores fusiform, sides slightly dissimilar. 



Genus AUantocystis Keilin. Sporadins, head to head associa- 

 tion; cysts sausage-like; in dipterous insects. One species. 



A. dasyhelei K. (Fig. 178, j-m). In gut of larval Dasyhelea 

 ohscura; full-grown sporadins 65-75m by 20-22^; cysts 140-150/i 

 by 20m; spores 18m by 6.5m- 



Family 10 Ganymedidae Huxley 



Trophozoites only known; mature individuals biassociative ; 

 posterior end of primite with a cup-like depression to which the 

 epimeritic organella of satellite fits; cysts spherical; spores un- 

 known. 



Genus Ganymedes Huxley. Characters of the family; Huxley 

 considers it as an intermediate form between Acephalina and 

 Cephalina. 



G. anaspides H. (Fig. 178, n). In gut and hver-tube of the 

 crustacean, Anaspides tasmaniae (Tasmania); trophozoites in 

 association, 70-300m by 60-130m; cysts 85-1 15m in diameter. 



Tribe 2 Cephalina Delage 



The body of a trophozoite is divided into the protomerite and 

 deutomerite by an ectoplasmic septum; inhabitants of the ali- 

 mentary canal of invertebrates, especially arthropods. 



One host species involved 



Non-septate; epimerite a knob Family I Lecudinidae (p. 392) 



Septate 



Development intracellular 



Sporadins associative. . .Family 2 Cephaloidophoridae (p. 393) 



Sporadins solitary Family 3 Stenophoridae (p. 393) 



Development extracellular 

 Sporadins associative 



Satellite non-septate Family 4 Didymophyidae (p. 393) 



Satellite septate Family 5 Gregarinidae (p. 394) 



Sporadins solitary 



Epimerite simple knob-like 



Cysts with several ducts. . .Family 6 Leidyanidae (p. 396) 



Cysts without or with one duct 



Family 7 Monoductidae (p. 396) 



Epimerite not simple knob-like 

 Epimerite cup-shaped or digitate 



Epimerite cup-shaped . Family 8 Menosporidae''(p. 398) 



