The halecostomes, of which Amia is an example, have an opercular dilator muscle originating on the mandible which opens the operculum. |
The bill is a pinkish horn color and dark markings appear on the upper mandible. |
The first simulations involved static rigid-beam models, assuming the mandible to be nonflexible and muscles to contract isometrically. |
In the mandible, there are, in front, four incisors, two canines, four premolars, and six molars behind. |
Following the collection, the bees fly near the flower and move the resin ball from the mandible to one of the corbiculae. |
Those muscles below the mandible are anatomically described as being above or below the hyoid bone. |