The Protozoa of Sandusky Bay and Vicinity. 463 
Leidy, Jos.— Concluded. 
1879. Fresh-water Rhizopoda of North America. 
Report U. S. Geol. Surv. of the Terr., Hayden, Vol. 
1h 
1880. On Amoeba. 
Proc. Ac. Nat. Sc. Phila., 1879 (1880), p. 204. 
1880. Rhizopods in the Mosses of the Summit of Roan Mt., 
Na Car: 
Proc. Ac. Nat. Sc. Phila., 1880 (1881), p. 333-340. 
1882. A New Infusorian belonging to the Genus Pyxicola 
SK 
Proc: Ac. NativSe) Phila: |: 1882)\p.) 252. 
1882. Infusorian Parasites of Enchytraeus and Distichopus. 
Proc. Ac. Nat. Sc. Phila., 1882, p. 145. 
1883. A Social Heliozoon. 
Proc. Ac. Nat. Sc. Phila., 1883, pp. 95-6. 
1883. Raphidiophrys socialis sp. nov., from Lake Hopat- 
cong, N. J. 
McMurrich, J. Playfair. 
1884. A New Species of Infusorian. 
Am. Nat., Vol. 18, pp. 830-2. 
Mottier, D. M. 
1894. Pleodorina in Indiana. 
Bot. Gaz., Vol. XIX, p. 383. 
Nachtrieb, H. F. 
1894. Zoological Work during 1893 at the Gull Biol. Sta- 
tion. 
Quart. Bulletin Univ. of Minn., ii, 5-7. 
Nutting, C. C. 
1888. Description of a Supposed New Species of Acineta, 
Poetrophrya compressa. 
Amer. Nat., p. 13-17. 
Packard: Ac'S: 
1874. Life-history of the Protozoa, including the Sponges. 
Amer. Nat., Vol. 8, pp. 728-748; Vol. 9, pp. 37-48. 
Palmer, F. Chalkley. 
1903. Five New Species of Trachelomonas. 
Proc. Acad. Nat. Sci. Phila., Vol. 54, p. 791-795, I pl. 
