11 Prot. 
PROTOZOA. 
contained brood of eight units, which grow to the adult size. These, 
however, only split into four instead of into eight fragments, then con- 
jugate with one another, and, arriving ultimately at the condition of 
resting cysts, complete the developmental cycle. 
Behgii, R. S. tJbor die systematische Stellung der Gattung Amphidi- 
nium, Clap. u. Lackm. Tom. cit. pp. G93-G95. 
Supplements his previous essay on the Cilia -F lag ellata , with a note in 
which Amphidinium is removed from the Dinophyulce , to which it was 
originally referred, and placed among the Gymnodinulce. 
Butschli, C. Bemerkung fiber das von J. Kunstler entdeckte, neue, 
flagellatenartige Wesen, Kunchelia gyrans , Kunstler. Tom. cit . pp. 
679-681. 
Criticizes Kunstler’s description of the complex alimentary and re- 
productive systems of the Flagellata, above recorded, and exposes the 
unsounduess of that writer’s views by special reference to his recently 
established genus, Kunclcelia [Zool. Rec, 1881, Prot. p. 30], pronounced 
by Kunstler to be a fresh-water ally of Noctiluca i but here demonstrated 
to be a Cercai ia. 
Lankesteu, E. Ray. On Drepanidium ranarum , the Cell-parasite of 
the Frog’s Blood and Spleen. Q. J. Micr. Sci. ii. pp. 53-65. 
The minute sausage-shaped parasitic organisms, Drepanidium ranarum , 
found chiefly in the frog’s blood and spleen, described by Lankester in 
1871, are reinvestigated and discussed in connection with Gaule’s expressed 
opinion that they are not independent beings, but simply modified 
portions of the ordinary blood-corpuscles. The additional evidence ad- 
duced by Lankester is altogether in favour of their independent nature. 
The more familiar blood parasite of the frog, Trypanosoma sanguinis , 
Gruby, also maintained by Gaule to be a modified form only of the 
ordinary white corpuscles, or leucocytes, is likewise discussed with 
relation to its independent protozoic affinities. 
Wallerstein, H. Ueber Drepanidium ranarum , Lankester. Inaug- 
Diss. Bonn : 1882, 8vo, 39 pp. 
Certes, A. Sur les parasites intestinaux de 1’huitre. C. R. xcv. 
pp. 463-465. 
In oysters, obtained from widely-separated localities, the presence 
within the stomach-cavity of one, if not two, infusorial parasites, was 
always detected. In oysters brought from Cancale and Marennes, a multi- 
flagellate type, apparently identical with Hexamita in/lata, Dujardin, 
was frequently observed. A yet more extensively distributed form, most 
nearly allied to the frog parasite, Trypanosoma sanguinis of Gruby, is 
described by Certes under the title of Trypanosoma balbianii. 
Noll, F. C. Ueber Micrococcus conchivorus. Als Korrosion oder 
Karriositat der Schnecken. Zool. Gart. xxiii. pp. 157-159. 
To the foregoing species of Micrococcus , is attributed the capacity to 
corrode or injuriously affect the shells of various fresh- water snails and 
