NMITA:Neogene Marine Biota of Tropical America

Saurida caribbaea (Breder, 1927)

Specimen details:
Sample Number: PPP1276
Type Status: nontype
Scale Bar is 1 mm
Type: SEM
Orientation: mesial
Locality: Bocas del Toro, Bocas del Toro, Panama

- Enlarge Image -

Morphologic Description:

    Otolith shape: oblong;
    Thickness: moderately thin;
    Form: -Mesial convex;
    Form: -Lateral flat;
    Dorsal margin: flattened;
    Dorsal margin sculpture: irregular to lobed;
    Ventral margin: gently rounded, anteriorly slightly irregular;
    Posterior margin: rounded and irregular;
    Sulcus acusticus: ostial, heterosulcoid;
    Colliculum: heteromorph, very low anterior and posterior colliculi;
    Pseudocolliculum: absent;
    Ostium: elongate, slight dorsal flare, ventral margin horizontal;
    Cauda: Straight and horizontal, slightly flared posteriorly, tip poorly defined;
    Ostio-caudal differentiation: slight dorsal constriction;
    Collum: absent;
    Crista superior: poorly developed over ostium, ridge-like along 2/3rds of cauda, absent at cauda tip;
    Crista inferior: well developed along length of sulcus, except at extremities;
    Dorsal depression: elongate, close to margin, posteriorly, dorsal area is raised to smooth plateau;
    Ventral depression: absent;
    Rostrum: moderate, tapering and sharply rounded or pointed;
    Antirostrum: minute or absent;
    Excisura: moderate, notch very shallow, angle wide;
    Early Pliocene: Popa island, Bocas del Toro, Panama;

Return to: