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Beardsley Zoo, Bridgeport, Connecticut
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Dallas Aquarium, Fair Park, Dallas, Texas
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Aquarium, Paris
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Kattegatcentret, Grenå. Aquarium
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Metynnis mola (Eigenmann and Kennedy).
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Dentition of Pygopristis denticulatus (Cuvier).
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Rooseveltiella altus (Gill). No. 21432 U. S. N. M., presumably the type. 155 mm. long. Napo, on Marathon River. Collected by Orton.
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Myletes pacu, Native of the Essequibo, Guiana.
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Piaractus nigripinn is (Cope). C.M. No.5635. 192 mm. Santarem.
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Dentition of Serrasalmo brandii Reinhardt.
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Serrasalmo emarginatus.
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Pygocentrus piraya (Cuvier). Specimen no. 3630, Berlin Museum, labelled "P.nigricans" in the hand-writing of Johannes Muller. 127 mm. long. Guliana..
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Kattegatcentret Grenå
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Dentition of Serrasalmo humeralis (Cuvier and Valenciennes).
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Enlarged teeth of a young specimen of Myleus pacu Humboldt.
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Premaxillary and mandibular teeth of Rooseveltiella notatus (Lutken).
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Myletes pacu; Native of the Essequibo, Guiana.
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Dentition of Piaractus nigripinnis (Cope). a, b, c, the premaxilry from below, within, and without, respectively. d and e, the dentary from within and without.
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Serrasalmo brandti Reinhardt. 1. C.M. No.5766. 59 mm. Pirafora. 2. C.M. No.5766. 85mm. Pirafora. 3. C.M. No.5762. 123 mm. Joazeiro. 4. C.M. 5762. 170b mm. Joazeiro..
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Dentition of Myloplus micans (Lutken).
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Serrasalmo piranha.
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Kattegatcentret Grenå
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Dentition of Serrasalmo humeralis gracilior Eigenmann.
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Myleus levis Eigenmann and McAtee.
