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Octopus and squids

Sepia officinalis. Lateral fins extend full length of body; not united at posterior. Dark brown dorsally with ‘zebra’ stripes laterally; effective camouflage among long leaves and shadows of Zostera. November 2011. Sublittoral. Sezimbra, Portugal.
Sepia officinalis
Sepiola atlantica. Hovering with aid of fins and translucent white exhalent funnel pointed down. Attached bases of fins do not reach anterior or posterior of mantle. June 2009. Connemara, Ireland.
Sepiola atlantica
Octopus vulgaris swimming. Bag-like body, with warty surface. Eight equal arms with two rows of suckers each. Arms linked basally by web. Palma aquarium, Mallorca, Spain. June 2009.
Octopus vulgaris
Eledone cirrhosa. Ventral surface white, clearly demarcated from dorsum by pale rim around lateral periphery of mantle. Mainly benthic, moving on arms, but jet propels water from exhalent funnel for rapid escape. April 2010. North Wales.
Eledone cirrhosa