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150. Bubalichthys cyanellus (Nelson) Jordan. Small-mouthed Buf- 
falo. ( 'Bubalichthys bubalinus and Bubalichthys altus. M. V. 325 : 
Ichthyobus cyanellus Nelson 49.) 
Abundant in all the larger streams throughout the state. An 
examination of Mr. Nelson’s typical specimens shows that they 
are the young of the common Bubalichthys bubalus of Agassiz. 
As the specific name “ bubalus ” is hardly tenable for this species, 
if we conceive that the bubalus of Rafinesque is an Ichthyobus , I 
have lately suggested the name bubalinus as a substitute. Cya- 
nellus has however priority over bubalinus. I therefore propose to 
adopt Mr. Nelson’s name for this species. 
Order NEMATOG-N A.THI. 
Family SILURID^E, (the Cat-fishes.) 
Genus ICHTHSELURUS , Rafinesque. 
151. * Ichthselurus furcatus (C. & V.) Gill. Fork-tailed Cat. (M. V. 
328.) 
Ohio and Mississippi rivers; probably not common. I have 
seen none from within the limits of the state. 
152. Ichthselurus robustus Jordan. Chuckle-headed Cat. (M. Y. 328 ; 
Ictalurus furcatus Nelson 50.) 
Illinois River ; probably not rare in the larger streams. Peoria- 
153. Ichthselurus punctatus (Raf.) Jordan. Common Channel Cat, 
Blue Cat, White Cat. (M. Y. 328; Nelson 50.) 
Yery abundant in all the large streams throughout the state. 
Cairo; Pekin ; Rock R., Ogle Co.; Bottoms, Union Co. 
Genus AM1URUS , Rafinesque. 
154. Amiurus nigricans (Le S.) Gill. Great Fork-tailed Cat, Great 
Mississippi Cat, Great Lake Cat-fish. (M. Y. 329.) 
Abundant in the Mississippi and Ohio rivers and in Lake 
Michigan. This species reaches an immense size and is probably 
the largest of all our fresh water fishes. 
155. Amiurus natalis (Le S.) Gill. Yellow Cat. (M. Y. 331 ; Amiu- 
rus cupreus Nelson 50.) 
Everywhere more or less abundant in ponds and bayous. Mc- 
Lean Co.; Cache R., Johnson Co. 
156. Amiurus vulgaris (Thompson) Nelson. Long-jawed Cat. (M. Y. 
331 ; Nelson 50.) 
Abundant in the Mississippi River at St. Louis, and in Lake 
Michigan. Pekin, III. 
