eigenmann: the FRESHWATER FISHES OF BRITISH GUIANA 133 



Gaff-topsail Catfishes. 

 Breviceps Swainson, Class. Fishes, Amph., and Rept., I, 1838, 328 (bayre). 

 Felichthys Swainson, Class. Fishes Amph., and Rept., II, 1839, 305, substitute 



for Breviceps Swainson, preoccupied (bagre). 

 Ailurichthys Baird and Girard, Proc. Acad. Nat. Sci. Phila., 1854, 26 (marinus). 

 Mlurichthys Gill, Proc. Acad. Nat. Sci. Phila., 1863, 172, emendation. 

 Mystus Gronow, Cat. Fish, ed. Gray, 1854, 165 (carolinensis), name preoccupied. 

 Pimelodus Bleeker, " Silures de Suriname," 1864, 65 (bagre), not of Lacepede, as 



restricted by Gill. 



Nostrils close together, separated by a valve; lower jaw with only two barbels, 

 band-like; dorsal and pectoral spines prolonged into filaments. 



Key to the Species of Felichthys. 

 a. Distance of dorsal fin from tip of snout 3.33 in the length; distance of adipose from the dorsal fin 2.6 

 times in the length, or longer; base of anal 4.66 in the length, or longer. Anterior lobe of anal 

 with minute dots; highest anal ray less than half the length of the base of the anal; vomerine and 



palatine patches of teeth separate; anal rays 32-35 bagre. 



aa. Distance of dorsal from tip of snout 3 in the length; distance of adipose from dorsal fin 3 in the 

 length; highest anal ray about as high as the base of the anal, which is 5.8-6.5 in the length; anal 

 rays 20-24 marinus. 



12. Felichthys bagre (Linnaeus). 



Silurus bagre Linnaeus, Syst. Nat., ed. 12, I, 1766, 505. — Gmelin, Syst. Nat., I, 



iii, 1788, 1360. 

 Pimelodus bagre Lacepede, Hist. Nat. Poiss., V, 1803,93, 98 (Brazil). — Bleeker, 



" Silures de Suriname," 1864. 66 (Surinam)". 

 Mlurichthys bagre Jordan, Proc. U. S. Nat. Mus., IX, 1886, 559 (name only). 

 Ailurichthys bagre Eigenmann and Eigenmann, Proc. Cal. Acad. Sci., (2), I, 



1888, 148 (Sao Matheos; Santos; Para; Curuca; Bahia; Pernambuco; Brit. 



Guiana); Occasional Papers Cal. Acad. Sci., I, 1890, 33. 

 Felichthys bagre Gill, Proc. U. S. Nat. Mus., XIII, 1891, 354. — Jordan and Ever- 



mann, Bull. U. S. Nat. Mus. No. 47, I, 1896, 116. 

 Galeichthys gronovii Cuvier and Valenciennes, Hist. Nat. Poiss., XV, 1840, 40 



(Guiana; Maracaibo; Mana; Cayenne; Bahia). — Muller and Troschel, in 



Schomburgk, Reisen, III, 1848, 628 (Waini and Barima). — Kner, SB. Akad. 



Wiss. Wien, XXVI, 1857, 392 (Cajutuba; Para). 

 Mlurichthys gronovii Gunther, Catalogue, V, 1864, 178 (Demerara; West Indies). 

 Galeichthys eidouxii Cuvier and Valenciennes, Hist. Nat. Poiss., XV, 1840, 43 



(Guayaquil). 



