VAN NAME: SIMPLE ASCIDIANS. 619 
Willey, A. 
1894. Amphioxus and the ancestry of the vertebrates. New York and 
London, xiv + 316 pp., illus. 
1900. On the protostigmata of Molgula manhattensis (DeKay). Quart. 
Journ. Micr. Sei., vol. 44, p. 141-160, pi. 9. 
Wilson, H. V. 
1900. Marine biology at Beaufort. Amer. Naturalist, vol. 34, p. 339- 
360. 
Printed Augud, 1912. 
