. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Fig. 7. Dentition of Serrasalmo rhombeus (Linnaeus). (Somewhat enlarged.) Serrasalmo albus Valenciennes in Humboldt, Recherches Poissons Fluv. Rec. d'Observ. Zoologie, Vol. Ill, 1821, p. 173, pi. 47, fig. i (Orinoco). Serrasalmo caribe Cuvier & Valenciennes, Hist. Nat. Poiss., Vol. XXII, 1849, p. 279. Serrasalmo immaculatus Cope, Proc. Amer. Philos. Soc, 1878, p. 692 (Peruvian Amazon); Eigenmann & Eigenmann, Proc. U. S. Nat. Mus., Vol. XIV, 1891, p. 60; Fowler, Proc. Acad. Nat. Sci. P
. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Fig. 7. Dentition of Serrasalmo rhombeus (Linnaeus). (Somewhat enlarged.) Serrasalmo albus Valenciennes in Humboldt, Recherches Poissons Fluv. Rec. d'Observ. Zoologie, Vol. Ill, 1821, p. 173, pi. 47, fig. i (Orinoco). Serrasalmo caribe Cuvier & Valenciennes, Hist. Nat. Poiss., Vol. XXII, 1849, p. 279. Serrasalmo immaculatus Cope, Proc. Amer. Philos. Soc, 1878, p. 692 (Peruvian Amazon); Eigenmann & Eigenmann, Proc. U. S. Nat. Mus., Vol. XIV, 1891, p. 60; Fowler, Proc. Acad. Nat. Sci. Phila., 1906, p. 471, fig. 54 (Peruvian Amazon, notes on the types); Eigenmann, Reports Princeton Univ. Exp. Patagonia, Vol. Ill, 1910, p. 442. Distrihutioii.—Guianas and Amazons. The type of immaculatus figured by Fowler shows it to be a rhombeus. It is possible that the smaller cotypes are humeralis. The S. albus is said to difTer in having twenty dorsal rays. I have found nineteen in one specimen of rhombeus and until we find a species in the Orinoco with the characters assigned to albus, differing from rhombeus, albus may be put as a synonym of Pv A R Yi =r /^ .<^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Museum; Carnegie Museum of Natural History. [Pittsburgh] : Published by authority of the Board of Trustees of the Carnegie Institute
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