NMITA:Neogene Marine Biota of Tropical America



Brotula sp.2



Specimen details:
 Sample Number: PPP2221
Type Status: nontype
Scale Bar is 1 mm
Type: SEM
Orientation: mesial
Locality: Bocas del Toro, Bocas del Toro, Panama

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Morphologic Description:

    Otolith shape: spindle-shaped thick and elongated;
    Thickness: thick;
    Form: -Mesial convex;
    Form: -Lateral convex;
    Dorsal margin: rounded;
    Dorsal margin sculpture: entire;
    Ventral margin: rounded;
    Posterior margin: pointed and entire;
    Sulcus acusticus: ostio-caudal, heterosulcoid;
    Colliculum: heteromorph and low;
    Pseudocolliculum: absent;
    Ostium: elongate, sulcus lies in the dorsal margin, anteriorly;
    Cauda: elongate, flexed, pointed at both ends;
    Ostio-caudal differentiation: ventrally constricted;
    Collum: absent;
    Crista superior: poorly developed along entire sulcus;
    Crista inferior: poorly developed along entire sulcus;
    Dorsal depression: absent;
    Ventral depression: absent;
    Rostrum: small and pointed;
    Antirostrum: absent;
    Excisura: moderate, notch absent;
Distribution:
    Early Pleistocene: Swann Cay Fm., Bocas del Toro, Panama;

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