THE PROTOZOA OF LAKE ERIE. 
Ill 
LIST OF SOME OF THE PROTOZOA FOUND IN THE WATERS ABOUT SOUTH BASS 
ISLAND, IN LAKE ERIE, DURING THE SUMMER OF 1898. 
The waters examined were the same as those mentioned in the account of the 
Rotatoria. The list includes 08 species, distributed among the different groups as 
follows: Rhizopoda 13, Heliozoa 1, Mastigophora 21, Giliata 32, Suctorial. 
RHIZOPODA. 
1. Amoeba proteus Leitly. Taken in a water-bottle collection from the upper 3 feet of the surface 
of Lake Erie, 1 mile west of South Bass Island; also on Elodea from East Harbor and in the 
swamps on South Bass Island. 
2. Amoeba villosa Wallich. In the water-bottle collection from the upper 3 feet of the water of 
Lake Erie, 1 mile west of South Bass Island. 
3. Amoeba radiosa Ehrenberg. In the water-bottle collection from the upper 3 feet of the water 
of Lake Erie, 1 mile west of South Bass Island; also on Elodea from East Harbor, Lake Erie. 
4. Famphagus hyalinus Ehr. In surface towings in Put-in Bay Harbor, Lake Erie. 
5. Cochliopodium bilimbosum Auerbach. In water-bottle collection from upper 3 feet of water 
of Lake Erie, 1 mile west of South Bass Island; also on Elodea from East Harbor, Lake Erie. 
6. Difllugia lobostoma Leidy. In towings in Put-in Bay Harbor, Lake Erie; also from East Swamp 
on South Bass Island. 
7. Difllugia corona Wallich. In surface towings from Put in Bay Harbor, Lake Erie; also from 
East Harbor, Lake Erie; from Portage River, Ohio, and land-locked pools on Starve Island. 
8. Difllugia globulosa Duj. In water-bottle collection from the surface 3 feet of Lake Erie, 1 mile 
west of South Bass Island; from surface towings in Put-in Bay Harbor; from East Harbor, 
and from the swamps on Sonth Bass Island. 
9. Difllugia constricta Ehr. In Utricularia from Portage River, Ohio. 
10. Difllugia pyriformis Perty. In the swamp near the fisli-hatchery on South Bass Island; in 
Utricularia from Portage River, Ohio. 
11. Arcella vulgaris Ehr. In surface towings in Pnt-in Bay Harbor, Lake Erie; in East Harbor on 
Elodea; in the swamps on South Bass Island; from Portage River, Ohio. 
12. Centropyxis aculeata Stein. In swamps on South Bass Island. 
13. Euglypha alveolata Duj. Swamps on South Bass Island. 
HELIOZOA. 
14. Acanthocystis chaetophora Schrank. In plankton haul from Lake Erie, just west of South 
Bass Island; on Elodea from East Harbor, Lake Erie. 
MASTIGOPHORA. 
15. Oikomonas termo J. Clark. Abundant on floating floccose material on the surface of Lake Erie, 
northeast of North Bass Island. 
16. Anthophysa vegetans Muller. On Elodea from Easf Harbor, Lake Erie; from swamp on South 
Bass Island. 
17. Dinobryon sertularia Ehr. On vegetation from East Harbor, Lake Erie. 
18. Euglena viridis Ehr. In water-bottle collection from upper 3 feet of Lake Erie, taken 1 miie 
west of South Bass Island. Abundant in swampy parts of East Harbor, Lake Erie, and in 
the swamps on South Bass Island. 
19. Eugiena spirogyra Ehr. East Swamp, South Bass Island ; Portage River, Ohio. 
20. Euglena oxyuris Selim. East Swamp, South Bass Island. 
21. Amblyophis viridis Ehr. East Swamp, Sonth Bass Island. 
22. Colacium steinii Kent. On Diaptomus sp. in surface towings from Lake Erie. 
23. Colacium vesiculosum Ehr. On Cyclops in towings taken 2:} miles north of Kelley Island, in 
Lake Erie; on Polycirthra platyplera and various crustaceans in swamps on South Bass Island. 
24. Trachelomonas hispida Perty. In East Swamp, on South Bass Island ; from Portage River, Ohio. 
25. Trachelomonas volvocina Ehr. Amid filamentous algre from East Harbor, Lake Erie; from 
Portage River, Ohio ; from swamps on South Bass Island. 
