English: Eledone aldrovandi Delle Chiaje, Naples, from Ventral Side
Subject: Eledone
Tag: Mollusks
Date 1895
Author A. H. Cooke (Alfred Hands Cooke, 1845–1904); Arthur Shipley (1861–1927); Frederick R. C. Reed (Frederick Richard Cowper Reed, 1869–1946)
Source/Photographer English: Cooke, A. H .; Shipley, A. E .; Reed, F. R. C. (1895) Molluscs, Cambridge Natural History, v.3, London: Macmillan and Co.
Source: https://commons.wikimedia.org/wiki/File:FMIB_48750_Eledone_aldrovandi_Delle_Chiaje,_Naples,_from_Ventral_Side.jpeg

The curled octopus (Eledone cirrhosa), also known as the horned octopus, lesser octopus or northern octopus, is a species of cephalopod found in the northeast Atlantic, ranging from Norway to the Mediterranean, including the British Isles.