NuMHER 72 September 20, 1919 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan Pubushed by the University 



ACANTHOCEPHALA FROM FISHES OF DOUGLAS 

 LAKE, MICHIGAN^ 



By H. J. VanCleave 



The writer has recently described two new species of 

 Acanthocephala, N eoechinorhynchus crassiis and Octospinifer 

 macilcntiis'-, from the common sucker of Douglas Lake, Alich- 

 igan. Of these the latter represents a new genus. The speci- 

 mens forming the basis for these descriptions were from the 

 extensive collections taken by Dr. George R. La Rue during 

 the summer of 1912 in connection with investigation at the 

 University of Michigan Biological Station. In the course of 

 his investigation more than 375 specimens representing sixteen 

 different species of fish were examined for parasites. The Acan- 

 thocephala obtained in this extensive piece of work together 

 with exceptionally complete data were sent to the writer for 

 identification and study. Since no intensive study has been 



^ Contributions from the Zoological Laboratory of the University of Illinois, 

 No. 137. 



-Illinois State Natural History Survey, Volume 13, Article 8. In addition 

 to the descriptions of the two new species mentioned above the same work con- 

 tains the description of Pomphorhyiichiis bulbocolli Linkins which is cited sub- 

 sequently in this paper. 



