452 The Protozoa of Sandusky Bay and Vicinity. 
Class Infusoria — Continued. 
Platycola decumbens (Ehr.) S. K.; at- 
tached to willow roots, Columbus; in 
basket factory cove, Sandusky. 
Platycola gracilis From. sp.; on duck- 
weed roots from Biemiller’s cove. 
Platycola truncata From. sp.; on duck- 
weed roots from Biemiller’s cove. 
Genus Pyxicola S. K. 
Pyxicola carteri S. K.; on algae from Bie- 
miller’s cove. 
Pyxicola annulata Leidy; on willow roots 
from college lake, Columbus, body 
has boss like prominence at point of 
attachment. Syn. P. striata Kell. 
A. S. M. 84. 
Pyxicola pusilla S. K.; on algae from 
basket factory cove. 
Pyxicola constricta Stokes; on willow 
roots from college lake, Columbus, 
also common at Sandusky. 
Pyxicola affinis S. K.; attached to algae 
from college lake, Columbus. 
Genus Pyxidium S. K. 
Pyxidium inclinans (Miull.) S. K.; on 
duckweed from Biemiller’s cove. 
Pyxidium cothurnoides S. K.; on decay- 
ing vegetation from Biemiller’s cove, 
and on Entomostraca. 
Genus Thuricola S. K. 
Thuricola operculata Gruber; attached to 
willow roots, Columbus. 
Thuricola valvata (Wright) S. K.; on 
roots of duckweed from basket fac- 
tory cove. 
Genus Lagenophrys Stein. 
Lagenophrys ampulla Stein; on Gamma- 
rus pulex from Biemiller’s cove. 
