59 



CATALOGUE. 



Class I. PISCES. (The True Pishes.) 

 Sub-class Physoclisti. 



Order I. ACANTHOPTERI. (The Spiny- rayed Fishes.) 



Family I. GADID^. (Cod-fishes.) 



Genus 1. Lota, Cuvier. 



1. Lota maculosa Le Sueur.— BuRBOT; LiNG; El Pout. 

 Taken only in Lake Michigan. 



A single specimen occurred some years ago at Naples, on the Illinois river, 

 having evidentlj^ entered the river through the canal, then recently opened 

 to the Chicago river. 



Family IL COTTID^. (The Sculpins.) 

 Genus 2. Uranidea, De Kay. 



2. Uranidea richardsoni, Agassiz.— Miller's Thumb; Blob: Mufflejaw; 



Bull-head. 



(Bui. II, 50; Potamocottus alvordi, Potamocottus ivilsoni, Potamocottus meri- 

 dionalis.) 



This species, the only representative of its family known positively to oc- 

 cur within the limits of our State, is by far the most abundant in Southern 

 Illinois, where it is a common creek species, nestling under stone in shallows 

 and rapids. A single specimen from a muddy stream in McHenry county, 

 and a few from the shallow waters of Lake Michigan, are the only represen- 

 tatives in our collections from the northern part of the State. Other species 

 of this family occur in Lake Michigan have been found only in the deeper 

 waters outside our limits. 



Family III. SCI^NID.E. 



Genus 3. Haploidonotus, Rafinesque. 



Fresh-water Drums. 



3. Haploidonotus grunniens, Raf.— Sheepshead; Drum; White Perch; 



Croaker. 



This species occurs in Illinois only in the great lakes and in rivers, occa- 

 sionallv in spring finding its way into creeks tributary to the Illinois and 

 the Ohio. 



