While working on parasites of fish for the New York State Conservation Department during the summer of 1928 it was possible to secure experimental evidence on the life-cycle of Proteocephalus pinguis La Rue 1911. The adult parasite lives in the digestive tract of Esox lucius Linnaeus and E. reticulatus Le Sueur where it ranges in length between 50 and 90 mm. Since La Rue (1914) gives a complete description of the adult it is not necessary to go further into the morphology of this form. Adult tapeworms for the experiments were taken from E. lucius from Lake Erie and Ellicott Creek, near Buffalo, New York, and from E. reticulatus from Barrett and China Ponds near Carmel, New York.
Quasi-Experimental Evidence on the Effects of Unemployment Insurance from New York State