THE GYMNOTID^E 163 



37 (Descalvados) ; Boulenger, Boll. Torino, XIII, 1898 (Rio 



Zamora, Eqiiador) ; Eigenmann & Kennedy, Proc. Acad. 



Nat. Sci. Phila. 1903, 30 (Arroyo Trementina). 

 A^tei'onotus fassan Lacepede, Hist. Nat. Poiss., II, 209, pi. 6, 



fig. 3, 1800. 

 Sternarchus laccpcdu Castelnau, Anim. Amer. Sud, Poiss., 93, 



pi. 45, fig. 3, 1855, Surinam. 

 Sternarchus maxiniilliani Castelnau, 93, pi. 45, fig. 4, 1855, 



Urubamba. 



Habitat : Orinoco, Amazons and Paraguay. 



3. STERNARCHUS BONAPARTII Castelnau. 



Sternarchus bonapartii Castelnau, Anim. Amer. Sud, Poiss., 

 92, pi. 45, fig. 2, 1855, Amazon; Kaup, Apod., 126, 1856; 

 Giinther, Cat., VIII, 3, 1870; Cope, Proc. Am. Philos. Soc. 

 1878, 682 (Peruvian Amazon) ; Steindachner, Flussf. Siidam., 

 II, 42, 1881 (Manacapuru) ; Eigenmann & Eigenmann, 

 Proc. U. S. Nat. Mus., XIV, 1891, 62. 

 Habitat: Amazons. 



4. STERNARCHUS MACROLEPIS Steindachner. 



Sternarchus macrolepts Steindachner, Flussf. Siidam., Ill, 14, 

 pi. V, fig. 7, 1 88 1, near Barra do Rio Negro and Lake Man- 

 acapuru ; Eigenmann & Eigenmann, Proc. U. S. Nat. Mus., 

 XIV, 1891, 62; Boulenger, Trans. Zool. Soc, XIV, 427, 

 1898 (Riojurua). 

 Habitat : Amazon near mouth of Rio Negro and Jurua. 



2. Sternarchella Eigenmann, new genus. (Fig. 4.) 



Type : Sternarchus schotti Steindachner. 



A glance at the figures of the species of Sternarchus and the 

 type of this genus will show conclusively that schotti is not con- 

 generic with Sternarchus alhifrons. The snout is much shorter 

 and the mouth is very much smaller. 



Geographical distribution of the species : Barra do Rio 

 Negro to Peru. 



a. Gape moderate, angle of mouth below posterior nostril ; A. 163; 

 teeth of premaxillary and mandible in 2 series ; opercle pointed ; 



