246 



the free-swimming larva. Jour. Morph. and Physiol., vol. 42, no. 2, 

 p. 453-467, 2 pL, 1 fig. 



Hartmeyer, R. 



1923. Ascidiacea, part 1. Danish Ingolf-Expedition, vol. 2, pt. 6, 365 p., 

 1 pL, 35 fig. Copenhagen. 



Kingsley, J. S. 



1882. Some points in the development of Molgula nianhatterisis . Proc. 

 Boston Soc. Nat. Hist., vol. 21, p. 441-451, 1 pi. 



Tellkampf, T. A. 



1871. Notes on the Ascidea Manhattensis, De Kay, and on the Mammaria 

 Manhattensis. Ann. Lyceum Nat. Hist. N. Y., vol. 10, p. 83-91, 1 pi. 



Van Name, W. G. 



1912. Simple ascidians of the coasts of New England and neighboring 

 British Provinces. Proc. Boston Soc. Nat. Hist., vol. 34, no. 13, p. 

 439-619, 30 pi. 



Department of Zoology, 

 Washington University, 

 St. Louis, Mo. 



