394 
The Ohio Naturalist. 
[Vol. VI, No. 1, 
BRUSH LAKE PROTOZOA. 
Lumin'a C. Riddi.e. 
During the Fall of 1902 the writer studied and listed the 
Algae found at Brush Lake, Champaign Co., Ohio, and the list 
was published in Ohio Nat. 5:20S; at the same time a careful 
record was kept of the Protozoa found in the same material and 
was reported at the 1900 meeting of the Ohio Academy of Sci- 
ence by Professor F. L. Landacre as the writer was at that time 
located in the West. Delay in publication has been due to the 
writer’s anxiety for accuracy in nomenclature and citations. As 
far as has been possible the names have been arranged after 
Butschh’s system, taking the classification from Calkins’ “Pro- 
tozoa” and Blochman’s “Die Mikroskopische Thierwelt des 
Suesswassers.” 
My grateful acknowledgments are due to Professor Land- 
acre, and to Professor L. B. Walton of Kenyon College, for the 
use of literature in revising the list. 
RHIZOPOU.A 
Fain. Amocbidae. 
Dactylosjihaerium radiosum Fhrb.y. 
Fam. Arccllidac. 
Lifflugia urceolata ('art. 
('entropyxis aculeata Fhrljg. 
HEUOZO.^. 
Fam. A phrothoracidac. 
MASTIGOI’HOR.\. 
Fam. Hctcromonadidac. 
.tnthophysa vegetans(().F.M.) S.K. Spumella vivijiara Fhrhg. 
Fam. liuglenidac. 
Euglena oxyuris Schmarda. Phacus pyrum (Flirhg) S. K. 
Euglena spirogyra Ehrbg. Phacus trirjuetcr Ehrbg. 
Euglena viridis Ehrbg. 
Fam. .AsUisidac. 
Astasia trichojihora (Ehrbg) Clap. 
Fam. Pcrancmidac. 
Entosiphon ovatus Stokes. 
Fam. Pcridinidae. 
Pcridinium tabulatum Ehrbg. 
IN’FUSORIA. 
Fam. Knchclinidac. 
Pseudoprorodon uiveus Ehrbg. .\rachnidium globosum .S. K. 
('oleps hirtus (). !■'. .M. Didinium nasutum (). h'. M. 
Coleps uncinatus C. & L. 
I 
-\moeba proteus L. 
Amoeba villosa Wall. 
-Vrcella dentata Ehrbg. 
.\rcella vulgaris Ehrbg. 
Difflugia corona Wall. 
-Vctinophrys sol Ehrbg. 
