NMITA:
N
eogene
M
arine B
i
ota of
T
ropical
A
merica
Neobythytinae gen.ind. ind.
Specimen details:
Sample Number:
PPP2246
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:
oval, with dorsal expansion;
Thickness:
slightly thick;
Form: -Mesial
convex;
Form: -Lateral
slightly convex;
Dorsal margin:
domed;
Dorsal margin sculpture:
irregular;
Ventral margin:
rounded and irregular;
Posterior margin:
rounded and irregular;
Sulcus acusticus:
mesial, archeosulcoid;
Colliculum:
homomorph, with single horizontal colliculum;
Pseudocolliculum:
absent;
Ostio-caudal differentiation:
no constriction;
Collum:
absent;
Crista superior:
poorly developed along entire sulcus;
Crista inferior:
poorly developed along entire sulcus;
Dorsal depression:
very shallow and oval;
Ventral depression:
absent;
Rostrum:
absent;
Antirostrum:
absent;
Excisura:
absent;
Distribution:
Early Pleistocene:
Swann Cay Fm., Bocas del Toro, Panama;
Return to:
NMITA homepage
Fish Otoliths
List of Fish Otolith Taxa