367] STUDIES ON GREGARINES— WATSON 157 



STYLOCYSTIS ENSIFERA (Ellis) 

 [Figures 96, 99] 



1912 Stylocephalus ensiferus Ellis 1912a :686-7 



1913 Stylocystis ensiferus Ellis 1913b :274 



Stylocystis: Sporonts solitary, short. Average length 40 to 65/a. 

 Ratio length protomerite : total length : : 1 : 3 ; width protomerite : 

 width deutomerite : : 1 : 1 to 1 : 4. Protomerite cylindrical, conical to 

 subglobose. Approximately as wide as high. Deep constriction at sep- 

 tum in adults. Deutomerite half as wide as long, widest at shoulder, 

 tapering slightly and ending in a flattened or very broadly rounded 

 posterior extremity. Epimerite a stout style, equal to protomerite in 

 length. Endocyte dark gray, opaque. Nucleus not seen. 



Cyst and spores not known. 



Taken at Quirigua, Guatemala. Host: Leptochirus edax Sharp. 

 Habitat : Intestine. 



Ellis first described this species as a member of the family Stylo- 

 cephalus, later removing it to the family Actinocephalidae. 



CYSTOCEPHALUS ALGERIANUS Schneider 



[Figures 115, 160] 



1886 Cystocephalus algerianus Schneider 1886 :100 



1899 Cystocephalus algerianus Labbe 1899 :31 



Cystocephalus: Sporonts solitary, ovoidal. Length 3 to 4 mm. Ra- 

 tio length protomerite : total length : : 1 : 6 ; width protomerite : width 

 deutomerite : : 1 : 1.7. Protomerite dome shaped, widest at base, twice 

 as wide as high, no constriction at septum. Deutomerite ovoidal, widest 

 through middle, length less than width, posterior end conical, sharply 

 pointed. Epimerite placed upon a short collar, globose, with conical 

 apex. Nucleus elongate ellipsoidal, containing several karyosomes. 



Cysts not known. Spores irregularly and peculiarly shaped, 10 by 

 10.5/t. 



Taken in Algeria. Host: Pimelia sp. Habitat: Intestine. 



