ACTIVITIES OF THE AMAROUCIUM TADPOLE 257 



LITERATURE CITED 



MacBride, E. W. 1914 Text-book of embryology, Invertebrata, vol. 1. 



MacMillan & Co. 

 Seeliger, Oswald 1885 Die Entwicklungsgeschichte der socialen Ascidien 



Jenaische Zeitschrift fiir Naturwissenschaft, Bd. 11. 

 KowALEVSKY, A. 1870 Weitere Studien ueber die Entwicklung der ein- 



fachen Ascidien. Archiv fiir mikroskopische Anatomie, von M. 



Schultze, Bd. 7. 

 Castle, W. E. 1896 The early stages of Ciona. Bull. Mus. Comp. Zool. 



Harvard, vol. 27. 

 Van Name, W. G. 1910 Compound ascidians of the coasts of New England 



and neighboring British provinces. Proc. Bost. Soc. Nat. Hist., 



vol. 34. 

 Sumner, F. B., Osburn, R. C, and Cole, L. J. 1911 Biological survey of 



the waters of Woods Hole and vicinity. Bull. Bureau of Fisheries. 



vol. 31, part 1. 



