NMITA:Neogene Marine Biota of Tropical America

Carapus bermudensis (Jones, 1874)

Specimen details:
Sample Number: PPP1137
Type Status: nontype
Scale Bar is 1 mm
Type: SEM
Orientation: mesial
Locality: Darien, Darien, Panama

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Morphologic Description:

    Otolith shape: oval, becoming angular posteriorly;
    Thickness: thick;
    Form: -Mesial slightly convex;
    Form: -Lateral convex;
    Dorsal margin: rounded laminated posteriorly;
    Dorsal margin sculpture: entire to slightly irregular;
    Ventral margin: slightly rounded and entire;
    Posterior margin: sharply pointed;
    Sulcus acusticus: ostial, heterosulcoid;
    Colliculum: homomorph, with single horizontal colliculum;
    Pseudocolliculum: absent;
    Ostium and Cauda: oblong, large and slightly flexed ventrally;
    Ostio-caudal differentiation: absent;
    Collum: absent;
    Crista superior: poorly developed along the entire sulcus;
    Crista inferior: poorly developed along the entire sulcus;
    Dorsal depression: very shallow and elongate;
    Ventral depression: absent;
    Rostrum: short and rounded;
    Antirostrum: reduced;
    Excisura: very narrow;
    Late Miocene: Tuira Fm., Darien, Panama;

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