422 GEORGE W. TANNREUTHER 



LITERATURE CITED 



Hudson, C. T., and Gosse, P. H. 1889 Rotifera or wheel-animalcules. 2 vols. 



London. 

 Jennings, H. S. 1896 The early development of Asplanchna herricki. Bull. 



Mus. Comp. Zool. Harvard, vol. 30. 



1894 Rotatoria of the Great Lakes and some of the inland lakes of 



Michigan. Bull. Mich. Fish Comm., no. 3. 



1902 Rotatoria of the U. S. II. A monograph of the Ratulidae. 



Bull. U. S. Fish Comm. 

 Montgomery, T. H. 1903 On the morphology of the Rotatorian family Flos- 



cularidae. Pro. Ac. Nat. Sci. Phila. 

 Nelson, A. J. 1904 The early development of Dinophilus. Proc. Ac. Nat. Sci. 



Phila. 

 Surface, F. M. 1907 The early development of a polyclade Planocera in- 



quilina. Proc. Ac. Nat. Sci. Phila. 

 Tannreuther, G. W. 1915 The embryology of Bdellodrilus philadelphicus. 



Journ. Morph., vol. 26. 

 Zelinka, C. 1892 Studien liber Radertiere III. Zeitschr. fur wis. Zool., 



Bd. 53. 



