354^ \\ 



APPENDIX. 



refractive spherules in the protoplasm, and another with 

 neither membrane nor flagellum, consisting of very granular 

 protoplasm with several refractive spherules, and capable 

 of protruding processes like pseudopodia. 



' In the blood of the German carp (Cyprinus Carassius) 

 Mitrophanow describes a parasite which is perceptibly 

 larger, and possesses an undulating membrane fastened 

 along the edge of the long body (Fig. 131). When the 

 body bent first towards one side and then to the other, a 



FIG. 131. ORGANISMS IN THE LOOD OF THE CARP. 



a, b, c t Hamatomonas carassii. d, e,f, , h, Other organisms in the same 

 blood [after Mitrophanow]. 



wave-like movement was observable at the free edge of 

 this membrane. 



In Cobitis fossilis these parasites were found in all the fish 

 examined except one, and in greater numbers in the hot 

 months. In Cyprinus Carassius they were only found occa- 

 sionally. Mitrophanow described other varieties, which he 

 considered were possibly not complete organisms, but deve- 

 lopmental forms. He considered that these organisms were 



