14 



Native Fishes Found in Contiguous Areas, Which May Ye* 



Be Found Within Our Limits; and Fishes of 



Doubtful Occurrence^ 



Family Catostomidae. — Suckers. 

 Genus and Species. 

 Moxostoma macrolepidotum Les. 



Family Cyprinidae. — Minnows and Carps. 

 Genera and Species. 

 Hybognathus nuchalis Ag., Pimephales promelas {Raf.) y 

 Pimephales notatus (Raf.), Notropis bifrenata {Cope), 

 Notropis hudsonius {Clinton), Notropis analostanus 

 (Gir.) , Notropis amoenus {Abbott), Rhinichthys catar- 

 actae (Cuv. & Val.) , Semotilus atromaculatus {Mitch.). 



Family Salmonidae. — Salmons. 



Genera and Species. 

 Oncorhynchus tschawytscha {Walb.) , Salmo irideus {Gibbons) . 



Family Aphredoderidae. — Pirate Perches. 

 Genus and Species. ' 

 Aphredoderus sayanus {Gilliam s) . 



Family Centrarchidae. — Sitnjishes. 

 Genus and Species. 

 Pomoxis sparoides {Lac). 



Family Percidae. — Perches. 

 Genus and Species. 

 Boleichthys fusiformis {Gir.). 



We will now take up the species in proper order of zoological 

 position, beginning with the lowest. 



Class Cyclostomi. 



Round Mouths. 

 In this small class the skeleton is cartilaginous and noto- 

 chordal. There are no limbs and no shoulder and pelvic 

 arches. Proper jaws are absent, the mouth being suctorial 

 with a nearly circular lip. The stomach and the intestinal 

 canal are simple and direct, without appendages. The vertical 

 fins are rayed. The heart is simple with one auricle and one 



