NMITA:Neogene Marine Biota of Tropical America



Pythonichthys sp.1



Specimen details:
 Sample Number: PPP1256
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: oblong;
    Thickness: moderately thick;
    Form: -Mesial convex;
    Form: -Lateral approximately flat;
    Dorsal margin: flattened;
    Dorsal margin sculpture: slightly irregular;
    Ventral margin: rounded, slightly irregular;
    Posterior margin: rounded, with acute or obtuse apices;
    Sulcus acusticus: ostial, heterosulcoid;
    Colliculum: homomorph, single;
    Pseudocolliculum: absent;
    Ostio-caudal differentiation: undifferentiated, shallows, no constriction;
    Collum: absent;
    Crista superior: well developed over the entire sulcus;
    Crista inferior: well developed under entire sulcus;
    Dorsal depression: absent;
    Ventral depression: absent;
    Rostrum: small and rounded;
    Antirostrum: small and rounded;
    Excisura: narrow and shallow;
Distribution:
    Late Pliocene: Bastimentos island, Bocas del Toro, Panama;

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