SPECIES IN NEMATODA 



753 



These free forms in dried films stained by Romanowsky stain have blue 

 protoplasm and one or two red chromatin areas. When there are two of 

 unequal size, some resemblance to Leishmania donovani may result, but 

 the smaller of the two red areas is never rod-shaped. 



NEMATODES.— Lutz and Splendore (1908) gave the name Nosema mystacis 

 to a parasite of the intestinal cells and reproductive organs of Ascaris 



Fig. 321. — Thelohania reniformis, Parasitic in Intestinal Epithelium 

 OF Protospirura muris {\, x 1,560; 2-15, x 2,200). (After Kudo, 1923.) 



1. Four cells of intestinal epithelium showing various stages of parasite. 



2. Fresh spore. 3. Stained spore. 

 4-8. Growth and nudtiplication by binary fission. 



9-14. Growth of pansporoblast and formation of eight spores. 

 15. Spore with e.xtnidcd filament. 



tmjstax of Brazilian cats. The bodies seen by Bischoff (1855) and Kefer- 

 stein (1861) in the same helminth were possibly spores of this species. 

 Kudo and Hetherington (1922) have described as Thelohania reniformis 

 a parasite which they found in the lining cells of the intestine of Proto- 

 spirura muris, a common helminth of the stomach of mics (Fig. 321). The 

 I. 48 



