NMITA:Neogene Marine Biota of Tropical America



Gobiidae gen.ind. ind.



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: approximately square, becoming more rectangular;
    Posterior margin: notched;
    Ventral margin: slightly flat and slightly irregular;
    Excisura: absent;
    Antirostrum: absent;
    Rostrum: absent;
    Ventral depression: absent, crescent-shape groove present close to margin;
    Dorsal depression: oval and shallow;
    Crista inferior: poorly developed along the entire sulcus, ventral area raised;
    Crista superior: well developed in neck and caudal region, poorly developed at extreme;
    Collum: absent;
    Ostio-caudal differentiation: slightly dorso-ventrally constricted;
    Cauda: narrow and oval giving a footprint shape;
    Ostium: broad and oval, to arrowhead shaped;
    Pseudocolliculum: present in the neck;
    Colliculum: homomorph, fused and indented colliculum;
    Sulcus acusticus: mesial, heterosulcoid;
    Thickness: moderately thick;
    Form: -Lateral convex;
    Dorsal margin: slightly rounded;
    Dorsal margin sculpture: entire to irregular;
    Form: -Mesial flattened to slightly convex;
Distribution:
    Early Pleistocene: Swann Cay Fm., Bocas del Toro, Panama;

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