The Protozoa of Sandusky Bay and Vicinity. 429 
Class Sarcodina — Continued. 
Genus Heleopera Leidy 
Heleopera petricola Leidy; among sphag- 
num in Licking County Reservoir. 
Heleopera picta Leidy; common in sphag- 
num in Licking County Reservoir. 
Genus Centropyxis Stein 
Centropyxis aculeata Stein; on decaying 
floating vegetation from Biemiller’s 
cove. 
Centropyxis aculeata var ecornis Leidy; on 
vegetation from Water Works cove; 
on sphagnum from Licking County 
Reservoir. 
Genus Assulina Ehrbg. 
Assulina seminulum Ehr.; on sphagnum 
from Licking County Reservoir. 
Family Euglyphidae 
Genus Euglypha Duj. 
Euglypha alveolata Duj.; on plants from 
floating island on southeast side of 
bay, a spineless variety; on sphag- 
num from Licking County Reservoir. 
Euglypha ciliata (Ehrbg.) ; Leidy; among 
algae from college lake (east), Co- 
lumbus. 
Genus Trinema Duj. 
Trinema enchelys (Ehrbg.) Leady; in 
towings from Biemiller’s cove. 
Subclass Heliozoa 
Order Aphrothoracida 
Genus Vampyrella Ceink. 
Vampyrella lateritia Fres.; among algae 
from basket factory cove, abundant. 
Genus Actinophrys Ehrbg. 
Actinophrys sol Ehrbg.; on vegetation 
from Basket Factory cove. 
