INTESTINAL TliYPANOPLASMAS OP FISHES. 
175 
Further Observations on the Intestinal Trypano- 
plasmas of Pishes, with a Note on the 
Division of Trypanoplasma cyprini in 
the Crop of a Leech. 
By 
C. II. lYIartiii, M.A. 
With Plates 9 and 10 and 2 Text-figs. 
Contents. 
I. General Introduction . , . . .175 
II. Methods . . . . . .177 
III. Trypanoplasma congri. .... 177 
IV. Heteromita dahlii (Apst.) ; Trypanoplasma ventri- 
culi (Keyss.) ..... I8I 
V. Trypanoplasmoides intestinalis ; Cryptohia (Alex.); 
Trypanoplasma intestinalis (Leger) . . 184 
VI. The Division of Trypanoplasma cyprini in the Crop of 
the Leech ..... 188 
VII. Conclusions ..... 189 
VIII. Literature . . . . . .192 
IX. Explanation of Plates .... 194 
I. General Introduction. 
In a previous paper in this journal Quart. Journ. Micr. 
Sci./ vol. 55, 1910) I have given a fairly detailed account of 
the morphology and method of division of the normal active 
form of Trypanoplasma congri. 
In attempting to unravel the rest of the life-cycle of this 
animal, I thought that it might be of some assistance if I 
could obtain material of the two other Trypanoplasmas whicli 
had been described from the gut of fishes, more particularly 
