Sepiola atlantica. Fins move like wings to propel forwards or backwards. Attached bases of fins do not reach anterior or posterior of mantle. June 2009. Connemara, Ireland.

Species

Sepiola atlantica

Photographer / copyright holder

M.N.Thomas http://www.flickr.com/photos/marknthomas/collections/

Sepiola atlantica. Mantle cavity open dorsally, except mid part fused to head. Large fins move like wings; translucent except chromatophores basally. Translucent border on lateral arms. Head mainly made of large eye bulges. June 2008. Connemara, Ireland.

Species

Sepiola atlantica

Photographer / copyright holder

M.N.Thomas http://www.flickr.com/photos/marknthomas/collections/

Sketch by N.F. McMillan intended for, but left out on publication of, her 1939 paper differentiating L. perspicua from L. latens for the first time in “Brittanic waters”. Click “View Image Details” for extracts of her text and comment.

Species

Lamellaria perspicua

Photographer / copyright holder

I.F. Smith

In The British species

L.perspicua. Shell 6.6mm high (max. dimension) from 11mm long animal superficially resembling L. latens. Spire protruding beyond oval outline of shell is diagnostic of L. perspicua. Periostracum transparent yellowish. April 2012. Weymouth, Dorset, England

Species

Lamellaria perspicua

Photographer / copyright holder

I.F. Smith

L. perspicua resembling L. latens, but 11mm length (10mm max for L. latens) and, faintly visible through mantle, spire protruding beyond oval outline of shell (arrow) are diagnostic of L. perspicua. See image 15 for extracted shell. April 2012 Weymouth.

Species

Lamellaria perspicua

Photographer / copyright holder

I.F. Smith

Eledone cirrhosa. Flexible “bones”, 60mm and 40mm long, from 660mm long animal; vestigial remains of ancestral internal shell. April 1974. Scapa Flow, Orkney.

Species

Eledone cirrhosa

Photographer / copyright holder

I.F. Smith

Eledone cirrhosa. Side view of chitinous “parrot’s-beak” extracted from base of arms. April 1974. Scapa Flow, Orkney.

Species

Eledone cirrhosa

Photographer / copyright holder

I.F. Smith

Eledone cirrhosa. Arms linked basally by web. Dark mark at centre is chitinous “parrot’s-beak”. April 1974. Scapa Flow, Orkney.

Species

Eledone cirrhosa

Photographer / copyright holder

I.F. Smith

Eledone cirrhosa. Each arm usually has one rows of suckers, but on slender tips of this large specimen suckers deflect alternately to right and left to give almost double row effect. 1974. Orkney.

Species

Eledone cirrhosa

Photographer / copyright holder

I.F. Smith

Eledone cirrhosa. Each arm has one rows of suckers. Bought from supermarket (source NE Atlantic); central beak removed. Traces of black sepia (ink) in some suckers at top of frame. Nov. 2012.

Species

Eledone cirrhosa

Photographer / copyright holder

I.F. Smith

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