1074 General Notes. [ October, 
(Capsus oblineatus) has also proved very destructive to strawber- 
ries this year in Illinois. Mr, Henry Edwards publishes (N. 
Y. Evening Telegram, July 3, 1883) a very instructive account of 
the work of Orgyia leucostigma on the shade trees in the squares 
and parks of New York city. The army worm has attracted lit- 
tle attention this year, notwithstanding the spring and early sum- 
mer were cool and moist. We have heard of it chiefly from 
Chester county, Pa~—-—The Hessian-fly -has proved so destruc- 
tive to wheat in Missouri, Kansas, Illinois, Indiana and Ohio, that 
much of the wheat was plowed up in consequence. Yet we 
doubt whether those entomologists who do not keep the run of 
agricultural news have been aware of the fact, or whether any 
specimens have been added to their cabinets. essrs. J. p. 
Peters and G. N. Milco had 300 acres of Pyrethrum cinerariefo- 
lium in cultivation at Stockton, Cal., this year, and are extending 
the area of what they find to be a most profitable crop. 
ZOOLOGY. 
Ha:matozoa oF Fisnes.—P. Mitrophanow gives some account 
of new monadiform parasites in the blood of fishes, and discusses 
their relations to the blood corpuscles. He points out that z 
consequence of their having been looked upon as curiosities, the 
literature that deals with the presence of foreign organisms in the 
blood of healthy animals, is in a very fragmentary condition. 
The author has discovered in the blood of Cobitis fossilis and of 
Carassius vulgaris'an organism which at first sight appeare ae 
a Nematode, but which exhibited, on closer examination, n° in- 
ternal differentiation, and some amceboid characters. Of about 
30-40 ». long, it was only 1-114 ». broad, and moved witi ble 
rapidity ; at its anterior end there was a flagellum of considera $ 
length, and the anterior was narrower than the hinder ent- 
When dying, or less active, the organism became much rie 
and an undulating membrane became apparent. The body 0 aie 
organism, the membrane and the flagellum all exhibited a h wet 
geneous highly refractive protoplasm of great contractile r ve 
Some striking varieties of this form are described. the. ‘lar t0 
tozoön found in Carassius vulgaris was at first sight sim ait 
that found in C. fossilis, and just described, but it differed from 
in its somewhat larger size and in the more distinct appas sa 
its undulating membrane. For the reception of these form” 
new genus must be established which may be known as. Ta 
tomonas, and the two species as H. cobitis and H. caras ae S 
giving an exact definition of these forms, the author prot eee 
refer to the views of Gaule, and states that he comes bagi: h the 
clusion that he has here to do with organisms and not "o Ee 
derivates of anatomical elements, and he agrees with i cet 
Ray Lankester that we have here Cytozoa. In consegue uld 
the paper of the last-mentioned naturalist, he feels that PS 
