Shark egg capsules

描述：

Description: Egg capsules of the horn shark (Heterodontus francisci) on the left, and the swellshark (Cephaloscyllium ventriosum) on the right, at the Birch Aquarium in San Diego. Date: 22 July 2008, 04:16. Source: Eggs. Author: Jean. Other versions: Derivative works of this file: Shark egg capsules (cropped foto).jpg.