176 EIGENMANN AND WARD 



Gymnotiis carapo Linnaeus, ed. X, 246, 1858; ed. XII, 427, 

 1766; Bloch, V, 59, lab. 157, fig. 2; Gronow, Syst., ed. 

 Gray, 22, 1854. 



Sternopygiis caraptis^ Giinther, Cat., VIII, 7, 1870; Liitken, 

 Velhas Flodens Fiske, 247, and XIX, 1875 (Rio das Vel- 

 has) ; Peters, Mb. Akad. Wiss. Berlin, 1877, 473 (Apure) ; 

 Steindachner, Fisch-f. Magdalenen Str., 4, 1878 (Para); 

 Boulenger, Proc. Zool. Soc. 1887, 282 (Canelos) ; Steindach- 

 ner, Flussf. Siidam., II, 44, 1881 (Amazon from Para toTeffe ; 

 Xingu at Porto do Moz ; Lake Manacapuru ; Rio Branco ; 

 Borba ; Caicara ; Essequibo ; Surinam ; Maroni River in Gui- 

 ana) ; Eigenmann & Eigenmann, Proc. U. S. Nat. Mus., XIV, 

 1891, 62; Perugia, Ann. Mus. Civico Storia nat. Genova, 

 ser. 2, vol. X, 56, 1891 (Central Chaco) ; Eigenmann, Ann. 

 N. Y. Ac. Sci., VII, 1894, 626 (Marajo) ; Boulenger, Trans. 

 Zool. Soc, XIV, 38, 1896 (Paraguay). 



Gymnotus macrurtcs, Bloch & Schneider, 522, 1801. 



Slemopygus macrnrus^ Miiller & Troschel, Hor^e Ichthyol., 

 Ill, 14, 1849; Kaup, Apod., 137; Steindachner, Die Gym- 

 notidae, 11, 1868 (Surinam; Rio Branco: Borba; Caigara) ; 

 Cope, Proc. Ac. Nat. Sci. Phila. 1871, 257, 1872 (Am- 

 byiacu) ; id., Proc. Am. Philos. Soc. 1878, 57 (Peruvian Am- 

 azon). 



Carapus macrourns^ Cuvier, Regne Animal, ed. I, II, 237, 

 1817. 



Caraptis arcnatus Eydoux & Souleyet, V^oy. Bonite, Zool., I, 

 p. 210, pi. 8, fig. 2, 1836. 



Carapus sangiiinolcnUis Castelnau, Anim. Am. Sud, Poiss., 

 85, pi. 32, fig. I, 1855, Urubamba or upper Ucayale. 



SternopygiiS marcgravii Reinh., Vidensk. iMeddel. Naturh. 

 Foren. Kjobenh., 1852; and Wiegm. Arch., 1854, ^^O- 

 Habitat : Orinoco south to Paraguay and Rio das Velhas. 



27. GYMNOTUS ^QPILABIATUS Humboldt. 



Gymnotus cequilabiatus Humboldt, Recueil d'observat., Zool. 



et Anat. Comp., i, 46, pi. 10; Kaup. Apod., 142 ; Giinther, 



Cat. VIII, 7, 1870. 

 Slernopygus cequilabialus, Miiller & Troschel, Horaj Ichthyol., 



