Prot. 1 
XVIII. PROTOZOA. 
BY 
Albert Wm. Brown, B.A., F.L.S. 
Christ Church , Oxford. 
CONTENTS. 
Page 
Introduction . 
1 
I. Titles. 
2 
II. Biology. 
1. Anatomy and Morpho- 
Dgy. 
10 
2. Physiology. 
11 
3. Embryology .... 
11 
4. Classification .... 
11 
5. Distribution .... 
11 
6. Evolution. 
12 
7. Methods. 
12 
8. Pathology. 
12 
9. Miscellaneous .... 
12 
III. Distribution. 
1. Geographical .... 
12 
2. Geological. 
13 
Page 
Distribution {cont.) 
3. Parasitic.13 
IV. Systematic. 
Gymnomyxa. 
Proteomyxa (vacant) 
Labyrinthulidea . . . . 13 
Lobosa.14 
Heliozoa (vacant) 
Foraininifera.14 
Radiolaria.16 
Corticata. 
Sporozoa.24 
Flagellata.25 
Dinoflagellata ) , , N 
Rhynchoflagellata^ ( vacan ) 
Ciliata.26 
Acinetaria (vacant) 
INTRODUCTION. 
The Record of Protozoa for 1899 is the smallest of all Records of Protozoa 
for some years past. Interest in pathological questions and in Sporozoa 
generally shows no sign of decline but there seems to be hardly the same 
amount of energy devoted to Foraininifera as in some previous years. But, 
on the whole, if there are fewer titles, in point of interest this Record 
compares very favourably with its predecessors containing, as it does, 
almost all the papers of recent importance on Malarial Fever. The 
researches of Grassi, Bignami, Bastianelli, Ross, Koch, Dioxisi and 
others have now established the role of the mosquito in the transference of 
