Heterodontus quoyi (Freminville, 1840)

3.1.8 | Heterodontus quoyi View in CoL

A medium-sized heterodontid egg case ( 101.7 mm ECL), lateral keels making three rotations from anterior to posterior ends; surfaces smooth; anterior margin broad and slightly S-shaped when viewed from anterior plane; widest at midportion, gradually tapering posteriorly; keel base to adjacent keel apex at midportion small (8.9% – 9.3% ECL); keels moderate in width (8.3% – 9.1% ECL), straight, projecting strongly anteriorly (Figure 2g), flexible, ending abruptly (not tapering) at posterior margin. Color light golden brown when preserved (Figure 10).