Abstract
An essential aspect of the evolution of coleoid cephalopods is the diversification of egg-laying strategies. In decapodiforms (e.g., squid and cuttlefish), for example, the egg masses are structurally complex and mostly benthic. However, in the suborder Oegopsida, which includes oceanic squid, eggs are either pelagic or brooded in the female's arms. Therefore, in an essentially nektonic c…