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CAPALOGUE: 
Class I. PISCES. (Tue Trur Fisuss.) 
Sub-class PHysocu:stt. 
Order i. ACANTHOPTERI. (Tur Spiny-rayep F1sHEs.) 
Family I. GADIDA. (Cop-FisHEs.) 
Genus 1. Lota, Cuvier. 
1. Lota maculosa Le Suewr.—Burpot; Line; Hen Pour. 
Taken only in Lake Michigan. 
A single specimen occurred some years ago at Naples, on the 
Illinois River, having evidently entered the river through the canal, 
then recently opened to the Chicago River. | 
Family Il. COTTIDA. (THe Scunprs.) 
Genus 2. Uranipga, De Kay. 
2. Uranidea richardsoni, Agassiz.—MiI.LuEr’s THums; Bros; Murrim- 
JAW; BuLL-HEAD. 
(Bul. Il, 59; Potamocottus alvordi, Potamocottus wilsoni, Potamal 
cottus - ‘meridionalis.) A 
Tiiis species, the only representative of its family known posi- 
tively to occur within the limits of our State, is by far-the most 
abundant in Southern Illinois, where it is a common creek species, 
nestling under stones 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 representatives im 
our collections from the northern part of the State. Other species 
of this family occurring in Lake Michigan have been found only im 
the deeper waters outside our limits. 
Family III. SCLA NIDA. 
Genus 8. Hapnorponotus, Rafinesque. 
FRESH-WATER Drums. 
- 
3. Haploidonotus grunniens, Saf.—SHEEPSHEAD; Drum; Waits 
PrrcH; CROAKER. e 
This species. occurs in Illinois only in the great lakes and in 
rivers, occasionally in spring finding its way into creeks tributary 
to the Illinois and the Ohio. 
