Abstract “Deep-sea” cephalopods are here defined as cephalopods that spend a significant
part of their life cycles outside the euphotic zone. In this chapter, the state of knowledge in …

Molluscs comprise the second largest phylum of animals (after arthropods), occurring in
virtually all habitats. Some are commercially important, a few are pests and some carry …

The cephalopods (Mollusca: Cephalopoda) are an exceptional class among the
invertebrates, characterised by the advanced development of their conditional learning …

Squids of the family Bathyteuthidae have generally been infrequently encountered in their
deep-sea habitat. Remotely operated vehicles were used to observe seven individuals in …

Little is known about the reproductive habits of deep-living squids. Using remotely operated
vehicles in the deep waters of the Monterey Submarine Canyon, we have found evidence of …

In some squids, such as those in the family Loliginidae, upon copulation, females receive
and store male-delivered sperm capsules, spermatangia, at two different body locations: the …

Spermatophores from coleoid cephalopods are capable of functioning autonomously during
mating, attaching themselves to the female body through the “spermatophoric reaction”. In …

In many animal phyla, females have a unique sperm storage organ (SSO). Post-copulatory
sexual selection is a powerful driving force of SSO evolution. SSOs are generally considered …

Animal species usually have a single sperm-storage site in the female body, but females of
the squid Heterololigo bleekeri possess two distinct sperm-storage sites simultaneously …

Cephalopod biology is briefly surveyed in the context of cephalopod culture, considering its
promises and limits. The motivations for undertaking culture work vary greatly, both in a …