TRYPANOSOMES IN TSETSE-FLIES AND OTHER DIPTERA, 253 
Tam unable to agree with Salvin-Moore and Breinl in 
regarding the kinetonucleus as of centrosomic nature. On 
the contrary, I agree with the recently expressed view of 
Keysselitz, to the effect that ‘‘ Der Blepharoplast stammt vom 
Kern ab und besitzt Kernnatur ” (‘ Arch. Protistenkunde,’ x, 
Text-ric. B.—Trypanoplasma sp. from a pike (Hsox lucius), 
Sutton Broad, Norfolk, to show the kinetonucleus, larger and more 
darkly stained than the trophonucleus, and the two blepharoplasts, 
from each of which a flagellum arises; the cytoplasm contains 
puree oarse staining granules. Osmic vapour, Giemsa, X 2000 
inear, 
p- 129); I should differ from Keysselitz in the use of the 
word blepharoplast, which, in my opinion, should be used for 
bodies of centrosomic and not of nuclear nature. I am of 
opinion, further, that Salvin-Moore and Breinl have confused 
two distinct structures under the name “ extra-nuclear centro- 
some”; namely, the kinetonucleus, a chromatic body, and 
the true blepharoplast, a centrosomic or achromatic body. It 
