76 ILUNOIS BIOLOGICAL MONOGRAPHS [76 



Leger places the species positively in the genus stated: 



Ces caractferes, (the epimerite as described above) joints k. ceux foumis par la forme du spora- 

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

 Actinocephalus. 



ACTINOCEPHALUS sp. LIger 



1899 Actinocephalus sp. Leger 1899: 532 



1903 ? 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] 



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 S. mucronata. Nucleus slightly eUipsoidal, 

 one large karyosome. 



Cysts not seen. Spores 20 by lOfi. 



Intestinal caeca of Sciara nitidicollis Meig., larva. 



Taken in Poitou, France. 



