Studies on the embryonic development of pharaoh's cuttlefish Sepia pharaonis Ehrenberg, 1831 under laboratory conditions

摘要

Pharaoh's cuttlefish Sepia pharaonis was raised from laboratory spawned eggs in fiber glass tanks. This work was attempted to understand and document day wise embryonic developmental changes for easy identification. Hatching process took 13 days for a mini adult-like hatchling (paralarva) to squeeze out of the eggs. Digital microphotographs and line drawings are presented for the stages of development.