Necturus Skull Definitions/Descriptions
g. Squamosal - extends anterolaterally from the opisthotic, forming the posterlateral margin of the skull
n. Angular - the bone that primarily composes the mandible medially.
o. Dentary - the bone that composes the mandible laterally.
p. Collumella - anterior to the opisthotic, which is a disc-shaped covering over the oval window.