Y-shaped

A Y-shaped partition that divides the head internally in Locusta Leach, into two chambers, an anterior and posterior.

In one view a faint ridge, also Y-shaped, occurs on the expanded posterior portion, and the surface is convex.

The urohyal (see fig. 5B) is an unornamented, Y-shaped bone, with the stem of the Y pointing anteriorly.

All are of the coelacanth type, having Y-shaped neural and haemal arches, without centra.

This consisted of inhaling the fumes of the leaf through a Y-shaped device applied to the nostrils.