122 MEMOIRS OF THE CARNEGIE MUSEUM. 
Fiske, 247, and XIX, 1875 (Rio das Velhas); Prtrers, Mb. Akad. Wiss. 
Berlin, 1877, 473 (Apuré); SvTErNDACHNER, Fisch-f. Magdalenen Str., 4, 
1878 (Para); BouLENGER, Proc. Zool. Soc., 1887, 282 (Canelos); STEINDACH- 
NER, Flussf. Stidam., II, 44, 1881 (Amazon from Para to Teffé; Xingu at Porto 
do Moz; Lake Manacapuru; Rio Branco; Borba; Caigara; Essequibo; Surinam; 
Maroni River in Guiana) ; EIGENMANN AND EIGENMANN, Proc. U.S. Nat. Mus., 
XIV, 1891, 62; Perueta, Ann. Mus. Civico Storia Nat. Genova, Ser. 2, Vol. X, 
56, 1891 (Central Chaco); Ergmnmann, Ann. N. Y. Acad. Sci., VII, 1894, 
626 (Marajo); BouLENGER, Trans. Zool. Soc., XIV, 38, 1896 (Paraguay). 
Gymnotus carapus EIGENMANN AND WARD, Proce. Wash. Acad. Sci., Vol. VII, 1905, 
175 (Orinoco, south to Paraguay; Rio das Velhas); von IHmprRING, Os Peixes 
do Brazil, Part 1 A, 284 (Venezuela, Amazonas, Brazil Central). 
Gymnotus equilabiatus HumBoupt, Recueil d’Observat., Zool. et Anat. Comp., i, 
46, pl. 10; Kaup, Apod., 142, 1856; GinrueEr, Cat. VIII, 7, 1870; ErcEn- 
MANN AND Warp, Proc. Wash. Acad. Sci., Vol. VII, 1905, 176 (Magdalena and 
Guayaquil). 
Sternopygus equilabiatus MULLER AND TroscHEL, Hore Ichthyol., III, 15, 1849; 
STEINDACHNER, Fisch-f. Magdalenen Str., 53, pl. XIV, fig. 1, 1878 (Magda- 
lena River); id., Fisch-f. Cauca and Guayaquil, 36 and 50, 1880 (Cauca and 
Guayaquil); EIGENMANN AND EIGENMANN, Proc. U. S. Nat. Mus., XIV, 
1891, 62; BouLEenGceEr, Boll. Univ. Torino, XIII, 1898 (Rio Guayas); STEIN- 
DACHNER, Denkschr. Acad. Wiss. Wien, LXII, 59, 1902 (Rio Magdalena at 
Baranquilla); Srarxs, Proc. U. S. Nat. Mus., XXX, 1906 (Guayaquil); 
EIGENMANN, Repts. Princeton Univ. Exp. Patagonia, III, 1910, 450 (Magda- 
lena and Guayaquil). 
Gymnotus equilabiatus nigriceps VON THERING, Os Peixes do Brazil, Part 1 A, 285 
(Maranhao). 
Sternopygus cequilabiatus nigriceps EIGENMANN, Repts. Princeton Univ. Exp. 
Patagonia, IIT, 1910, 450 (Maranhav). 
Carapus macrourus Cuvier, Régne Animal, ed. I, II, 237, 1817. 
Carapus arenatus KypoUX AND SOULEYET, Voy. Bonite, Zool., I, p. 210, pl. 8, 
fig. 2, 1836. 
Carapus sanguinolentus CASTELNAU, Anim. Am. Sud. Poiss., 85, pl. 32, fig. 1, 1855 
(Urubamba or upper Ucayale). 
Sternopygus maregravii Reinu., Vidensk. Meddel. Naturh. Foren. Kjébenh., 1852; 
and Wiegm. Arch., 1854, 180. 
1764 C. M., 12541 I. U. M., 104, 155-500 mm. Botanic Garden, Shideler. 
1765 C. M., 12592 I. U. M., eighteen, 200-400 mm. Georgetown Trenches, 
Eigenmann. 
1766 C. M., 12593 I. U. M., ten, 150-450 mm. Creek below Potaro Landing, 
Kigenmann. 
