126 ILLINOIS BIOLOGICAL MONOGRAPHS [336 



merites, which he shows in his drawing, or whether he saw sporonts 

 which were not associative. 



So the generic position of the species is doubtful. The family de- 

 termination is fairly definite, from the simple spherical epimerite, but 

 the species must be relegated to the group of the indeterminate species. 



GREGARINA DAVINI Leger and Duboscq 



[Figure 204] 

 1899 Oregarina Davini Leger and Duboscq 1899 :xxxviii-xl 



Gregarina: Sporonts not described, cephalonts alone known. Nu- 

 cleus spherical, with a large irregularly shaped karyosome. Epimerite 

 large and spherical, set upon a rather long stout collar formed by a pro- 

 jection of the anterior end of the protomerite. 



Cysts spherical, with 12 or more long spore ducts from which spores 

 are extruded in chains. Spores barrel shaped, 8/x long. 



Taken at Marseilles, France. Host: Gryllomorpha dalmatina 

 Ocsk. Habitat: Intestine and caecum. 



Although sporonts have not been found, the species is undoubtedly 

 a member of the genus Gregarina from the mode of dehiscence and the 

 shape of the epimerite. It cannot be determined whether or not the 

 species has been described elsewhere from the sporont in addition to 

 these other factors under a different name. Until sporonts are found 

 and correlated with the description herewith, the species must remain 

 incomplete. 



MISCELLANEOUS 



GREGARINA SPHAERULOSA Dufour 



[Figure 179] . . 



1837 Gregarina sphaerulosa Dufour 1837 :12 



1851 Gregarina sphaerulosa Diesing 1851 :11 



1863 Gregarina sphaerulosa Lankester 1863 :94 



1899 Hirmocystis gryllotalpae Labbe 1899 :13 



Dufour described this form as follows : 



"Subspherica alba, cephalothorace abdomen adaequanta. Hab. in ventriculo 

 Oedipodarum et Gryllotalpae. 



Elle-est egalant a peine la grosseur d'une tete de fine epingle a insectes ; 



. Les individus bien adultes semblent resulter de 1'union de deux hemispheres. 



Des yeux peu rigpreux pourraient croire que ce sont deux individus accouples 

 bout a bout." 



It is obvious from the description and from the figure that what Dufour 



