AQUATIC EARTHWORMS 645 



LITERATURE ON FRESH-WATER OLIGOCHAETA 



EISEN, G. 1885. Oligochaetological Researches. Rept. U. S. Fish Com. for 



1883, ii : 879-964; 19 pi. 



1896. Pacific Coast Oligochaeta II. Mem. Calif. Acad. Sci., 2: 123-198; 

 12 pi. 



1905. Enchytraeidae of the West Coast of North America. Harriman 

 Alaska Expedition, 12: 1-166; 20 pi. New York. 



ELLIS, M. M. 1912. A New Discodrilid Worm from Colorado. Proc. 



U. S. Nat'l Mus., 42: 481-486. 

 GALLOWAY, T. W. 1911. The Common Fresh- Water Oligochaeta of the 



United States. Trans. Amer. Micr. Soc., 30: 285-317; 14 figs. 

 HALL, M. C. 1914. Descriptions of a New Genus and Species of the 



Discodrilid Worms. Proc. U. S. Nat'l Mus., 48: 187-193. 

 MICHAELSEN, W. iQOo. Oligochaeta. Das Tierreich. No. 10. Pp. xxix and 



575- 

 MOORE, J. P. 1893. On Some Leech-like Parasites of American Crayfishes. 



Proc. Acad. Nat. Sci. Phila., 1893: 419-428; i pi. 



1894. Pterodrilus, a Remarkable Discodrilid. Proc. Acad. Nat. Sci. Phila., 

 1894: 449-454; i pl. 



1906. Hirudinea and Oligochaeta Collected in the Great Lakes Region. 

 Bull. Bur. Fish., 21: 153-171; i pi. 



PIERANTONI, U. 1912. Monografia dei Discodrilidae. Ann. Mus. Zool. 



Univ. Napoli, n.s., 3, No. 24, 28 pp.; i pi. 

 SMITH, FRANK. 1900. Notes on Species of North American Oligochaeta III. 



Bull. 111. State Lab. Nat. Hist., 5: 441-458; 2 pi. 

 19000. Notes on Species of North American Oligochaeta IV. Bull. 111. 



State Lab. Nat. Hist., 5: 459-478; i pi. 

 1905. Notes on Species of North American Oligochaeta V. Bull. 111. 



State Lab. Nat. Hist., 7: 45-51. 

 SMITH, F., and WELCH, P. S. 1913. Some New Illinois Enchytraeidae. Bull. 



111. State Lab. Nat. Hist., 9: 615-636; 5 pi. 



WALTON, L. B. 1906. Naididae of Cedar Point, Ohio. Amer. Nat., 40: 683-706. 

 WELCH, P. S. 1914. Studies on the Enchytraeidae of North America. Bull. 



111. State Lab. Nat. Hist., 10: 123-212; 5 pi. 



