76 ILLINOIS BIOLOGICAL MONOGRAPJIS [76 



Leger places the species positively in the genus stated: 



Ces caract^res, (the epimerite as described above) joints k ceux fournis par la forme du spora- 

 din du kyste et des spores, font renter, sans aucun doute, cette Gr6garine dans le genre 

 Actinocephalus. 



ACTINOCEPHALUS sp. Leger 



1899 Actinocephalus sp. Leger 1899: 532 



1903 7 Actinocephalus sp. Minchin 1903: 333 



Host: Ctenophora sp., larva. 



This species is not described, but merely mentioned in a list of other 

 species found by Leger. 



Genus SCHNEIDERIA Leger 1892: 153 



Sporonts solitary. Protomerite separated from deutomerite by 

 constriction but no septum (pseudomonocystid). Epimerite a flat disc 

 with milled border, with or without central spine. Cyst dehiscence by 

 simple rupture. Spores biconical, smooth. (It might be possible that a 

 septum exists in the young trophozoites although this is not suggested 

 by Leger.) 



SCHNEIDERIA CAUDATA (von Siebold) Leger 

 [Figures 4 and 5] 



Sporonts solitary, elongate. Maximum length 1 mm. Ratio LP:TL: : 

 1:9; WP:WD: :1.1 : 1. Protomerite flattened at apex, wider than high, 

 widest in middle, constricted considerably to meet deutomerite but no 

 septum present. Deutomerite long, slender, tapering from anterior end, 

 a very long conical extremity. Epimerite a flattened disc with a milled 

 border, no style in center, as in 5. mucronata. Nucleus slightly ellipsoidal, 

 one large karyosome. 



Cysts not seen. Spores 20 by 10/x. 



Intestinal caeca of Sciara nitidicoUis Meig., larva. 



Taken in Poitou, France. 



