prenasal

It has long hindlimbs, a divided prenasal scale, and a red dewlap in adult males.

The septomaxillaries are closely associated dorsally with the premaxillaries immediately lateral to the prenasal processes.

In such cases, the anterior half is referred to as the prenasal and the posterior half is referred to as the postnasal.

The domestic pig typically has a large head, with a long snout which is strengthened by a special prenasal bone and a disk of cartilage at the tip.

The outer nasal (near the snout) is called the prenasal while the inner nasal (near the eye) is called the postnasal.

According to Klauber (1936), this species is characterized by the absence of the vertical light line on the posterior edge of the prenasal and first supralabial scales.

Usually the first supralabial scale is in broad contact with the prenasal scale, although slightly to moderately separated along its posteroventral margin by the most anterior prefoveals.

The median and lateral edges of the prenasal processes lengthen heterochronously, causing the median edges to be longest and to lie slightly dorsal to the level of the septomaxillaries.

Anteriorly, the nasals are widely separated by the partially ossified internasal septum, which is in contact with the premaxillaries between the prenasal processes; the anterior points of the nasals lie approximately one-half the distance between the anterior ends of the ethmoid and the premaxillaries.