Maxillary segment: the sixth segment of the head, bearing the maxillae.
The extreme anterior part of the bar is formed by the maxillae.
The maxillae are large bones, each terminating in a point posteriorly.
The prefronto-lachrymals (fig. 21, A and C, 7) connect the frontals with the maxillae.
Nasals and maxillae are absent, as is likewise the case in Proteus.
All the incisors are borne by the premaxillae, the remaining teeth by the maxillae.
It is mainly formed by the maxillae, as the palatines are very narrow.
There is no swelling on either the internal or external surfaces of the maxillae.
These horn cores are large upon the maxillae and the parietals, and are paired; on the nasals are smaller horns.
This asymmetry affects particularly the premaxillae, the maxillae, and the nasals.