442 The Protozoa of Sandusky Bay and Viciity. 
Class Infusoria — Continued. 
Family Pleuronemidae 
Genus Lembadion Perty. 
Lembadion bullinum Perty; in towings 
from Biemiller’s cove. 
Genus Cyclidium Ehr. 
Cyclidium glaucoma Ehr.; in infusion of 
weeds from basket factory cove. 
Family Opalinidae. 
Genus Anoplophrya Stein. 
Anoplohrya_ striata Duj.; in aliment- 
ary canal of large earthworm from San- 
dusky. 
Anoplophrya branchiarum Stein; in respi- 
ratory appendage of Gammarus pulex 
from Biemiller’s cove. 
Genus Hoplitophrya Stein 
Hoplitophrya falcifera Stein; in alimentary 
canal of earthworm from Sandusky. 
Genus Opalina Purkinjie and Valentin. 
Opalina dimidiata Stein; in rectum of 
common toad, Cedar Point, larval 
stage. 
Opalina ranarum Purk.; in rectum of 
common frog. 
Order Heterotrichida 
Suborder Polytrichina. 
Family Plagiotomidae 
Genus Conchopthirus Stein 
Conchopthirus anadontae Ehr. sp. ; in body 
fluid of Unio from Sandusky Bay. 
Conchopthirus curtus Eng.; in body fluid 
of Unio from Sandusky Bay. 
Genus Plagiotoma Duj. 
Plagiotoma lumbrici Duj.; in intestine of 
earthworm. 
Genus Metopus C. & L. 
Metopus sigmoides Miull.; in towings 
from Biemiller’s cove. 
