lo IJniversily of Michigan 



Amciuriis ncbiilosiis (LeSueur). Common Bullhead. 



Specimens examined : 2. Infested widi Acanthocephala : 2. 



Two dead specimens belonging to this species were picked 

 up from the beach. A single specimen of P. hulhocolli was 

 attached in the intestine of one of these, while the other bore 

 two intestinal cysts each containing a young form of this same 

 species of parasite. 



List of Species not Infested with Acanthocephala 

 Representatives of the following species were examined 

 without revealing any evidence of acanthocephalan infesta- 

 tion. The number preceding each species name indicates the 

 number of individuals examined. 

 6 LeiiciclitJiys sp.? Herring. 



2 Eupoinotis gibbosiis f Linneaus). Pumpkin Seed. 

 9 Lepouiis palUdns (Mitchell). Blue-gill. 

 117 Notropis hudsonius ( DeWitt Clinton) Spot-tailed 

 Minnow. 



1 Notropis conuitns (Mitchell). Common Shiner. 

 5 Pcrcopsis (/ittfatits Agassiz. Trout-perch. 



2 Piiiicplialcs iiotatus (Rafmesque). Blunt-nosed Min- 

 now. 



2 Sciiiotilits atroiiiaciilafiis (Mitchill). Horned Dace. 



New Host Records 



As a result of this investigation a few new host records have 

 been added to those previously recorded for E. thecatiis and 

 for P. hulbocoUi. 



New hosts for E. thccatus: Catostoiniis comuicrsonii, 

 Esox Indus, Percina caprodes. 



New hosts for P. bnlbocilli: Catostouius coiiunersonii 

 Percina caprodes, Micropterns doloniien, Auibloplites rupes- 

 tris. 



