EUGREGARINARIA 



97 



containing several sporozoites) are each the whole product of a zygote 

 (i.e. are oocysts), whereas in the coccidians, where the female gamete 



Fig. 79. Monocystis. From Borradaile. A, M. magna, x 25. B, M. lumbrici, 

 X 85. The latter is covered with the tails of spermatozoa, the offspring of the 

 sperm mother-cell in which it was embedded. 



Fig. 80. Gregarina longa, from larva of Tipula, the Daddy-long-legs. Highly 

 magnified. After Leger. A, B, C, D, E, Stages of the development of G. /ow^a 

 at first within and then pushing its way out of one of the cells of the intestine 

 of the Tipula larva. F, Mature form. c. cell of intestine of host; nu. its 

 nucleus ; pst. parasite. 



is a hologamete, the zygote forms, by means of a generation of 

 sporoblasts, several such spores in its oocyst. 



Monocystis (Fig. 79). Without divisions of the body. Parasitic in 



