430 The Protozoa of Sandusky Bay and Vicinity. 
Class Sarcodina — Continued. 
Genus Actinosphaerium Stein 
Actinosphaerium eichornii, Stern.; on 
walls of fish tank, San. Hatch. abund- 
ant. 
Order Chlamydophorida 
Genus Heterophrys Archer 
Heterophrys myriapoda Archer; in vege- 
tation from stagnant pool. 
Order Chalarathoracida 
Genus Raphidiophrys Archer 
Raphidiophrys elegans Hertwig & Lesser; 
among duckweed roots from Biemil- 
ler’s cove, rather common. 
Raphidiophrys viridis Archer; in floating 
decaying vegetation from Biemiller’s 
cove. 
Raphidiophrys pallida Schulze; on algae 
from basket factory cove. Closely re- 
sembling ‘“‘viridis’ except granules 
are pale and diameter 1/800 in. 
Genus Acanthocystis Carter 
Acanthocystis chaetophora (Schrank) Lei- 
dy; among roots of duckweed from 
Water Works cove. 
Acanthocystis pertyana? Archer; numer- 
ous among algae, duckweed and wil- 
low roots from college lake and run 
at Columbus. 
Order Desmothoracida 
Genus Clathrulina Cienk. 
Clathrulina elegans Cienk; on duckweed 
roots from basket factory cove, three 
individuals; on sphagnum from Lick- 
ing County Reservoir. 
