The aim of this open access book is to facilitate the identification and description of the
different organs as well as pathogens and diseases affecting the most representative species of
cephalopods focussed on Sepia officinalis Loligo vulgaris and Octopus vulgaris. These species
are valuable 'morphotype' models and belong to the taxonomic groups Sepioidea Myopsida and
Octopoda which include most of the species with a high market value and aquaculture potential.
The study is based on photographs at macroscopic and histological level in order to illustrate
the role of the most important pathogens and related diseases from the view of a pathological
diagnosis. The reader is able to familiarize with functional anatomy necropsy and general
histology of adults and paralarvae as well as with the identification of different pathogens
and pathologies. This work is thus an invaluable guide for the diagnosis of cephalopod
diseases. Besides including pathogens for non-European cephalopod species it also provides a
useful contribution encouraging marine pathologists parasitologists veterinarians and those
involved in fishery sanitary assessments aquarium maintenance and aquaculture practices aiming
to increase their knowledge about the pathology of cephalopods.
