NMITA:Neogene Marine Biota of Tropical America

Paraconger guianensis (Kanazawa, 1961)

Specimen details:
Sample Number: PPP2167
Type Status: nontype
Scale Bar is 1 mm
Type: SEM
Orientation: mesial
Locality: Canal, Canal, Panama

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Morphologic Description:

    Otolith shape: oblong;
    Thickness: medium thick;
    Form: -Mesial slightly convex;
    Form: -Lateral convex;
    Dorsal margin: rounded, with an anterior expansion,;
    Dorsal margin sculpture: irregular;
    Ventral margin: rounded and slightly irregular;
    Posterior margin: sharply rounded, slightly irregular;
    Sulcus acusticus: para-ostial, archaesulcoid;
    Colliculum: homomorph;
    Pseudocolliculum: absent;
    Ostium and Cauda: not differentiated;
    Ostio-caudal differentiation: no constriction;
    Collum: absent;
    Crista superior: well developed in mid to posterior sulcus;
    Crista inferior: well developed;
    Dorsal depression: absent;
    Ventral depression: absent;
    Rostrum: large, sharply rounded;
    Antirostrum: absent;
    Excisura: narrow, notch very shallow, angle wide;
    Middle Miocene to Late Miocene: Gatun Fm., Canal, Panama;

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