15U U. S. BUREAU OF FISHERIES 



1127. Oaleichthys surinamensis (Bleeker). 



Surinam. 



H exanematichthys surinamensis Bleeker, Versl. Akad. Amsterdam, 1862, 

 380, Surinam. 



1128. Oaleichthys seemani (Giinther). 



Panama. 



Arius seemani Giinther, Cat., V, 1864, 147, "Central America." 



1129. Oaleichthys gilberti Jordan and Williams. 



Coast of Sinaloa. 



Galcichthys gilberti Jordan and Williams, Proc. Calif. Acad. Sci., 2d 

 ser., V, 1895, 395, pi. 26, Mazatlan, Mexico. 



1130. Oaleichthys jordani (Eigenmann and Eigenmann). 



Panama. 



Tachisurus jordani Eigenmann and Eigenmann, Proc. Calif. Acad. Sci., 

 2d sen, I, 1888, 142, Panama. 



1131. Oaleichthys caerulescens (Giinther). 



West coast of Guatemala. 



Arius casrulescens Giinther, Cat., V, 1864, 149, Rio Huamuchal, Guate- 

 mala. 



1132. Oaleichthys azureus Jordan and Williams. 



Mazatlan, Mexico. 



Oaleichthys azureus Jordan and Williams, Proc. Calif. Acad. Sci., 2d 

 ser., IV, 1895, 398, pi. 27, Mazatlan, Mexico. 



1133. Oaleichthys xenauchen Gilbert. 



Panama. 



Galeichthys xenauchen Gilbert, in Jordan and Evermann, Fishes North 

 and Mid. Araer., 1898, 2777, Panama. 



1134. Oaleichthys guatemalensis (Giinther). 



Mazatlan to Central America. 



Arius guatemalensis Giinther, Cat., V, 1864, 145, Guatemala; Chiapas. 



1135. Oaleichthys assimilis (Giinther). 



Atlantic coast of Central America, ascending streams. 



Arius assimilis Giinther, Cat., V, 1864, 146, Lake Yzabel, Guatemala. 



1136. Oaleichthys dasycephalus (Giinther). 



Panama (wrongly ascribed to the Hawaiian Islands). 

 Arius dasycephalus Giinther, Cat., V, 1864, 157, Oahu; apparently an 

 error. 



1137. Oaleichthys longicephalus (Eigenmann and Eigenmann), 



Panama. 



Tachisurus longicephalus Eigenmann and Eigenmann, Proc. Calif. Acad. 

 Sci., 2d ser., I, 1888, 143, Panama. 



Genus 370. ARIUS Cuvier and Valenciennes. 



^Tachysurus Lac^pede, Hist. Nat. Poiss., V, 1803, 151 (7". chinensis 



Lac6pede; from a Chinese drawing, not identifiable as to species; 



may be a fresh-water fish or a Netuma). 

 Arius Cuvier and Valenciennes, Hist. Nat. Poiss., XV, 1840, 52 (^4. 



arius Cuvier and Valenciennes, type by autonomy). 

 Ariodes Muller and Troschel, Hone Ichth., Ill, 1849, 9 (Arius arenarius 



Miiller and Troschel). 

 Pseudarius Bleeker, Nederl. Tijdschr. Dicrk., I, 1862, 91 {Arius arius 



Cuvier and Valenciennes). 



1138. Arius spixii (Agassiz). 



Trinidad to Brazil. 



Fimelodus albidus Spix, in Agassiz, Gen. Spec. Pise. Brasil., 1829, 19, 



equatorial Brazil; name preoccupied. 

 Pimelodus spixii Agassiz, loc. cit., 19; after Spix. 

 Arius arenatus Cuvier and Valenciennes, Hist. Nat. Poiss., XV, 1840, 



106, Cayenne. 

 Arius laticeps Giinther, Cat., V, 1864, 171, British Guiana, Trinidad. 



1139. Arius melanopus Giinther. 



Pacific coast of Central America. 



Arius melanopus Giinther, Cat., V, 1864, 172, Rio Motagua. 



