25] STUDIES ON GREGARINES—KAMM 25 



In three of Mingazzini's twelve illustrations of the species, there is 

 some indication of a septum present, the protoplasm being quite different 

 in the two portions. 



I can see no differentiation between the two genera described by Min- 

 gazzini, Lecudina and Ophioidina, from the meagre data known con- 

 cerning each. The intracellular development and the spores may reveal 

 differences, however. From the existing data, I have united the two under 

 the name of the first-named genus, Lecudina. 



LECUDINA HETEROCEPHALA (Mingazzini) Kamm 

 1891 Ophioidina heterocephala Mingazzini 1891:473 



1893 Ophioidina heterocephala Mingazzini 1893: 54 



1899 Doliocystis heterocephala Labbe 1899: 34 



1903 Doliocystis heterocephala Minchin 1903: 327 



1922 Lecudina heterocephala Kamm 1922 (this paper) 



Sporonts very elongate, vermiform. Epimerite "a sort of papilla" 

 at anterior end. Protoplasm of anterior end differentiated from that of 

 body proper. 



Nucleus spherical, with one or two karyosomes. 



Intestine of Nephthys scolopendr aides delle Chiaje. 



LECUDINA POLYDORAE (Leger) Kamm 



1893 Doliocystis poly dor ae 



1899 Doliocystis polydorae 



1903 Doliocystis polydorae 



1909 Doliocystis polydorae 



1914 Polyrhabdina polydorae Caullery and Mesnil 1914: 520 



1922 Lecudina polydorae Kamm 1922 (this paper) 



Epimerite similar to that described for the type species, but larger. 

 "Epimerite a la forme d'un tronc de cone a petite base inferieure et il se 

 continue directement avec I'extremite anterieure du second segment, 

 allongee en forme de col." Leger. 



Intestine of Polydora agassizi Clap.; P. ciliata. 



Taken in the Gulf of Marseilles, France. 



LECUDINA sp. Saint- Joseph 



1907 Doliocystis sp. Saint- Joseph 1907: 145, 172, 173 



1911 Doliocystis sp. Sokolow 1911:287 



1922 Lecudina sp. Kamm 1922 (this paper) 



Measurements are given of sporonts from various polychaetes, as 

 follows: 84m by 29/x; 470/1 by 63m; 300m by 48m. It is quite possible that 

 several species are involved, but no description is given of any one. 



