Ventral border
Margo ventralis
Definition
The ventral border (Margo ventralis) of the mandible is free, smooth, and more or less convex. It is depressed on its caudal third or fourth by a vascular notch (Incisura vasorum facialium).
References
Anatomie comparée des mammifère domestiques - 5th edition - Robert Barone - Vigot