But the structure of the tongue itself (labium, l) is most curious.
The labium is a single organ which projects beneath the aperture of the mouth.
Odona: toothed: applied to Odonata by Fabricius because of the long teeth on the maxilla and labium.
In the male the labium is emarginate, in the female it is intire.
The proboscis is made up of the pair of jaw-appendages in front of the labium, the maxillae, as they are called.
When it emerges from the labium, is long and tubular, and capable of inflation.
labium obcordatum basi corneum angustius apice membranaceum medio emarginatum ciliatum lobo utrinque rotundato.
The labium (fig. 12) is furnished with two palpi, which are 3-jointed.
The labium is as wide as it is long, narrowed toward the end but truncated at the tip.
By stretching, it is stated, a labium can be doubled in its dimensions.
labium la·bi·um (lā'bē-əm)
n. pl la·bi·a (-bē-ə)
A lip or lip-shaped anatomical structure.
Any of four folds of tissue of the female external genitalia.