108 PROTOZOA 



ciiAr. iv 



The Dolichosporidia or Sarcosporidiaceae are, in the adult 

 state, elongated sacs, often found in the substance of the volun- 

 tary muscles, and known as " Kainey's " or " Miescher's Tubes " ; 

 they are at first uninucleate, then multinucleate, and then break 

 up successively into uninucleate cells, the spores, in each of 

 which, by division, are formed the sickle-shaped zoospores. 1 



1 Leger and Duboscq have found that Sarcocystis tenella, a parasite common in 

 the muscles of the sheep (and rarely found in man), has a conjugation and sexual 

 process recalling that of Stylorhynchus, save that the sperms are much smaller than 

 the ova (C.B. 1902, i. p. 1148). 



