“MANDIBLE” на русском языке

In the mandible , there are four incisors, two canines, four premolars, and six molars.

Centipedes were measured from the tip of the upper mandible to the posterior end of the last body segment.

In addition, bill curvature was measured, taking the radius of the height of the upper mandible from the line traced from the base to the tip of the bill.

the drake is all black except for an orange mark on the upper mandible

The bill is a pinkish horn color and dark markings appear on the upper mandible .