108 IOWA ACADEMY OF SCIENCES. 



blood from swine. The favorite fishing places are just below the dam and below- 

 T. M. Sinclair's packing hoase. The latter being the best, although the water is 

 less pure and clear than below the dam. 



9. I A mei iirus natalis {he Saem). Yellow cat. Scarce. 



10. WAtneiurus nebulosus [LeSaenr). Common bull-head. Apparently scarce. 



11. — Ame.iurus melas (Rafinesque). Bull-head. Common in all streams of 

 Iowa, This and the two preceding constitute the common bullhead in Iowa, the 

 latter being by far the most abundant. 



12. * Leptosolivaris(RA^nesque). Mud cat, Flathead cat. Specimens weighing 

 twenty pounds are occasionally taken from the Cedar river a short distance below 

 the dam in the early summer. Some of these large specimens may be A. nigricans^ 



13. Noturus flavus (Rafinesque). Stone cat. Cedar Rapids. Rare, 



14. Noturus gyrinus, [WiicheW). Stone cat. Common. 



ORDER VII EVENTOGNATHI. 

 FAMILY 7, CATOSTOMID.E. (tHE SUCKERS). 



15. f Carpi odes ?;e/!yer (Rifinesque). Quillback, crap sucker. Very common 

 in the larger streams of the entire basin. Different individuals show considerable 

 variation. I have been unable to find any constant characters by which to sepa- 

 rate it in two or more species. 



16. — Catostomus teres [NLitcheU). Common white sucker. 



17. —Catosiomus nigricans (Le Sueur). Hog sucker. Stone-roller. Hog Mul- 

 let. Found usually with the preceding, and nearly as abundant. 



18. —Erimiizon sitcetta (Lacepede), Chub sucker. This species seems rare in 

 Iowa. I have found it only in the Cedar river near West Liberty, 



19. — Moxostoma anisurum (Rafinesque). White-nosed sucker. Rare in lowa.- 

 In Cedar basin known only from Austin, Minnesota, and from Waverly. 



20. —Moxostoma duqnesnei (Le Sueur), Common red-horse. The most abund- 

 ant of Iowa suckers. 



21. Minytremia meJanops (Rafinesque). Striped sucker. Scarce. 



FAMILY 8, CYPRINID^ (THE MINNOWS). 



22. -fCompostoma anomahim (Rafinesque). Stone- lugger. Stone-roller, Com- 

 mon, especially in spring brooks. 



23. fChrosomus eri/throgaster {Ri^aesqac). Red-bellied minnow. Not com- 

 mon. An inhabitant of clear, cool water. 



I Ameiiiriis niaricans, (Le Sueur). Great cat fish, Mississippi cat. A resident of the 

 Mississippi river. 



iVoturus eariZis (Nelson). Des Moines and Skunic rivers. Rare. 



Noturus miiirus (.Jordan). An inhabitant of Minnesota. Not yet recorded from Iowa.. 



Ictiobus cyprinellaiOav.&Vul.). Red-mouthed buffalo. Common buffalo fish. Mis- 

 sissippi river. Usually tal<en from the bayous. Common. 



/ctiobus urws (Afcassiz). Big-mouthed buffalo. Mississippi river. Common. 



Ictiobus huljalus (Rafinesque). Small-mouthed buffalo. Common. 



There are one or more of the buffalo fishes found in the Cedar river, but which I am 

 unable to say. 



WCycleptus elongatus (Le Sueur). Missouri suclter. Mississippi river, scarce. 

 —Moxostoma aurealum^ (Le Sueur). Siiunk river, rare. 



—Placopharynx carinatus (Cope). Very abundant in western Iowa, This species re- 

 sembles Af. duquesnei, and it is not at all unlikely that many of the large suckers caught 

 in the Cedar in the spring may belong to this species. It is quite abundant in the Des 

 Moines river at Des Moines. 



