SILURID^. 83 



5. AMIURDS LUPUS, {Girard) GUnther. 



Texas Cat. 



(Fige. 9 and 10.) 



Pimelodus lupus, Girard (18.")8), U. S. Pac. R. R. Expl. x, 211. 



Anmirus lupus, Gunther (18G4), Cat. Fishes Brit. Mus. v., 101. 



Habitat. — Streams of Texas. 



This species strongly resembles Iclithwlurtis imnctatiis, but diCFers in 

 the shorter body, wider mouth, and darker colors, as well as in the 

 generic character of the free supraoccipital. In this species, however, 

 there intervenes scarcely more than the diameter of a pin's head between 

 the supraoccipital and the interspinal, in specimens 8 inches long ; so 

 nearly connected are they that I was at first disposed to consider this 

 species as an Ichthcelurus. Numerous specimens of A. lupus are in the 

 museum from Texas. 



6. AMIURUS NIVEIVENTRIS, Cope. 

 White-bellied Cat. 



(Figs. 11 and 12.) 



Amiurtui niveiventris. Cope (1870), Proc. Am. Philos. Soc. 486; Jordan & Copelaxd 

 (1876), Check List, 159. 



Habitat. — license River, North Carolina. 



This species seems to be very close to A. lupus, but appears to 

 diflfer in the broader head and in some other features. I have seen no 

 specimens of it. 



7. AMIURUS NIGRICANS, {Le Sueur) Gill. 



Great Fork-tailed Cat— Mississippi Cat.— Florida Cat. 



(Figs. 13 and 14.) 



Pimelodus nigricans, Le Sueur (1819), Mdmoires du Museum d'Hist. Nat. v, 153.— Cuv. 

 &Val. (1840), XV, 133.— De Kay (1842), Fishes N. Y. 160.-Storer (184G), 

 Synopsis, 403.— "Hyrtl (1859), Deukschrift Akad. Wiss. Wien, xvi, 16." 

 Amiurus nigricans. Gill (1862), Proc. Bost. Soc. Nat. Hist. 44.— Jordan (1876), 

 Man. Vert. 318.— Jordan & Copeland (1876), Check List, 159 (not of GOn- 

 THER (1864) nor of Cope (1870)=^. cwnosus). 



Silurus (Pimelodus) nigrescens, Richardson (1836), Fauna Bor.-Am. Fishes, 134. 



Pimelodus sp. incog., Thompson (1842), History Vermont, 139. ^ 



Pimelodus coerulescens, in part of Rafinesque, Kirkland, and others ; the big Chan- 

 nel Cats " all belong to this species. 



Habitat.-Great Lakes and Mississippi River, ascending all the larger 

 tributaries, larger rivers of the South Atlantic and Gulf States gen- 

 erally. 



