55] STUDIES ON GREGARINES—KAMM 55 



Sporonts in pairs, elongate. Length 150^, width not given. Ratio 

 LP : TL :: 1 : 3.5. WP : WD :: 1 : 1 .3. Protomerite of primite cylin- 

 drical, with conical apex, the conical portion nearly equalling the cylindri- 

 cal in length. Slight constriction at septum. Deutomerite constricted 

 at end of anterior third, rapidly swelling to an almost perfect globe in 

 posterior two-thirds. Satellite of practically same shape but less accen- 

 tuated. Epimerite a simple spherical or ovoidal papilla. 



Cysts spherical, dehiscing by spore-ducts, spores in chains. Spores 

 biconical, blunt at poles. 



Intestine of Lepisma saccharina L. 



Taken in the Valley of the Creuse, France, and in East Prussia. 



Species of Doubtful Position 



? GREGARINA PODURAE (Leger) Labbe 



[Figures 53 and 54] 



1892 Ckpsidrina Podurae Leger 1892: 119 



1899 Gregarina podurae Labbe 1899: 12 



1903 Gregarina podurae Minchin 1903: 336 



Sporonts in pairs or threes. Maximum length 90/i. Protomerite either 

 separated from deutomerite by septum or lacking the septum. Ratio 

 LP : TL :: 1 : 5.5; WP : WD :: 1 : 1 .8. In normal individuals proto- 

 merite dome-shaped, flattened apically. No constriction at septum. 

 Deutomerite cylindrical, broadly truncate at base. 



In individuals which lack the septum the whole animal is ovoidal with 

 or without a very small papillate epimerite. Normal epimerite much 

 larger, a slightly stalked papilla. The individuals which form associations 

 of more than two are of the abnormal ovoidal type. 



The protoplasm is gray-green with large orange granules. The nucleus 

 is spherical, with one karyosome. 



Cysts spherical, 80/x, one long spore-duct, spores in chains, 6.8 by 3ju. 



Intestine of Podura villosa and Orchesella sp. 



Taken in the Valley of the Loire, France. 



This species seems to be an aberrent one representing a transitory 

 species to another genus or an intestine in which for some reason the 

 gregarines became abnormal. The possibility of more than one species 

 being present is excluded from the same type of protoplasm of peculiar 

 color and texture in both kinds of individuals. The author suggests that 

 the species may be intermediate between the genus Gamocystis, in which 

 a septum is always absent, and Gregarina in which it is always present. 



