Section 88. The outer edge of the upper jaw and the cheek arch are

made up of three paired bones. First comes the premaxilla (p.m.)

(not p.m.1 or p.m.4), containing in the dog, the three incisors of either

side. Then comes the maxilla, bearing the rest of the teeth.* The jugal

or malar (ju.) reaches over from the maxilla to meet a zygomatic

process (= connecting outgrowth) (z.p.) of the squamosal bone.

* In the dog a sabre-like canine (c.), four premolars (p.m.1 and

p.m.4) and two molars (m.1 and m.2).

Text Book of Biology, Part 1: Vertebrata · 第 28 / 87 章