148 ILLINOIS BIOLOGICAL MONOGRAPHS [358 



fifths of body; 2) protomerite equal to or longer than deutonierite ; 3) 

 protomerite largest in anterior third, posterior two thirds cylindrical; 4) 

 septum invaginated into protomerite for the posterior third of its length ; 

 5) endocyte light brown. 



I have therefore changed the name of the species to Bothriopsis 

 terpsichorella. 



LEGERIA AGILIS (Schneider) Labbg 



1875 Dufouria agilis 

 1899 Legeria agilis 



Legeria: Sporonts solitary; measurements not given. Ratio 

 length protomerite : total length : : 1 : 2.5 to 1:3. Width protomerite 

 : width deutomerite : : 1.1 : 1. Protomerite irregularly cylindrical, con- 

 siderably dilated in anterior third, terminated by an obtuse angled cone 

 as wide as high. No constriction at septum. Septum convex upward 

 into protomerite. Deutomerite irreguarly cylindrical, tapering from 

 middle to a sharp point. Nucleus spherical, containing several karyo- 

 somes. 



Cysts spherical, dehiscing by simple rupture. Spores cylindro-bi- 

 eonical. 



Taken at Paris. Host: Colymhetes sp. larv. Habitat: Intestine. 



PHIALOIDES ORNATA (Leger) Labbe 



[Figures 87, 88] 



1892 FUalis ornata Leger 1892 :135 



1899 Phialoides ornata Labbe 1899:24 



Phialoides : Sporonts solitary, rather obese. Average length 

 1200/A. Width not given. Ratio length protomerite : total length : : 

 1 : 3.3 ; width protomerite : width deutomerite : : 1 : 1.2. Protomerite 

 subglobular, as wide as high, constriction at septum. Deutomerite 

 broadly ellipsoidal, widest in middle, broadly rounded behind. Epime- 

 rite persistent, a long slender cylinder, nearly as long as the whole spo- 

 ront (exclusive of the epimerite), terminating in a dome shaped retrac- 

 tile structure surrounded by a thickened collar, above which is a ring of 

 fine triangular chitinous teeth. Nucleus spherical, containing several 

 karyosomes. 



