Jordan and Ei'erffiatn?. — Fishes of North America. 133 



reaching almost to occipital process; bonos of head roughly granular 

 and sculptured ; occipital process as long as l)road; fins pale. Kio Hay- 

 ano, near Panama. An ally of T. fiirthii, apparently distingnished by the 

 longer anal fin. (Kner.) (rn iilt us, many ; radiatus, rayed.) 



Iliiip-iis arinides, Kner, Sitzbor. Akad. Wiss., Miinchon, 1863, £27, nut of Ciivior & Valenciennes; 



aiul Knkr & Steindachner, Bayer Akad., 1864, 47. 

 Ariuii iinillini(lialns, Gi'NTHER, Cat., v, 173, 1864; (after Kner), Rio Bayano. 



75. CATHOROPS, Jordan & Gilbert. 



Cnllinrnp!<, JoRnAN & Gii.nERT, Bull. l'. S. Fish Comm., 1882, 54, {hypophlhnlmiis). 



This group is closely allied to the typical section or genus of Tachi/siirus. 

 It is distinguished chiefly by the slender and numerous gill rakers and by 

 the low insertion of the eyes, suggesting the genus Hypojjhthahuus. The 

 two species are American. (/caiSopaw, to look down ; ui/', eye.) 



a. Upper jaw much produced; breadth of mouth 2}/^ in head. iiypophthalmus, 204. 



an. Upper jaw scarcely produced; breadth of mouth 2 in head. gulosus, 20."). 



204, CATHOROPS HTPOPHTHALMUS, (Steindachner). 

 Head3|. A. 22. Body elongate; head long, narrow, depressed; palan- 

 tine teeth small, bluntly conic, almost granular; vomerine bands widely 

 separate, each confluent with the large palatine baud, which is not pro- 

 duced backward ; both jaws thin, depressed, with narrow bands of teeth : 

 barbels very long; the maxillary reaching near middle of pectoral spine; 

 dorsal spine long; pectoral shorter; dorsal shield small; occipital pro- 

 cess subtriangular, longer than broad, its sides concave,, its middle 

 angular but not keeled; fontanelle long and narrow, not quite reaching 

 occipital process; shields of head rugose, with reticulating furrows. Fins 

 mostly pale. Eye small, placed low, its middle below level of angle of 

 mouth. L. 14 inches. Panama, rather scarce, (vno, below; o<p'&al/wg , 

 eye.) 



Ariiis liiipophthahnu!!, .Steindachner, Iclith. Beitr., iv, 31, pi. x, 1875, Panama. 

 205. CATHOROPS GULOSUS, (Eigenmann & Eigenmann). 



Head 3J. A. 23. Body slender; head broad, depressed ; width of head 

 li in its length; occipital process about as broad as long, obtusely 

 keeled; fontanelle narrow, continued backward as a groove; bones of 

 head rugose; eye oblique, its center over posterior end of mandible, on 

 level of angle of mouth; barbels reaching nearly to middle of pectoral: 

 jaws very thin; no vomerine teeth; palatine teeth widely separated, in 

 very narrow bands, the teeth obtusely conical; gill membranes united, 

 with free margin. Gill rakers 12 -f 30, li times diameter of eye; pectoral 

 l)ore large; spine slender, rather long. Panama. (Eigenmann.) (oulosii.i, 

 large-mouthed. ) 



Tachiximis gtilns^nx, Eigenmann A Eigenmann, Proc. Cal. .\c. Sci., 1888, 14G, Panama; Eigen- 

 mann, S. A. Ncmatognathi, 93, 1890. 



76. ICTALURUS, Rafinesque. 

 (Channel Cat.s.) 



rrtaliirHs, Rafinesque, Ichth. Oh., 61, 1826, {maculatus=pui>clatnK). 



EUiups, Kakinesque, I. c, 61, (maculalus). 



Sijnechoglaitif, Gill, .\nn. Lye. Nat. Hist. N. Y., 1859, 39, {headlei^pmictaim). 



