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As Cornelius correctly pointed out, it's not a living worm :) As to the question, what kind of worm they tried to imitate, I'd say, they had a nereid (errant, i.e. wandering) in mind and were likely inspired by the segmentation of Arenicola (sedentary), which together created this appearance, unrealistic for an errant polychaete: with the body segments ...


3

If you would have read the text from the source of that image (which by the way you didn't mention, I did a Google Image search and edited your question to include it), you would have known that what is seen in the picture is not a living thing, it is a latex fishing lure: Product Description: Sandworm/Ragworm 8″ size, sure fire fish catching lures. ...


7

I've discovered that searching for Darwin on the Encyclopedia of Life (EOL) appears to prioritise in its search results those species named by Darwin rather than for him. The first page of results includes many barnacle species (as noted by 3cat). The first five species are: Amphibalanus amphitrite (Striped Barnacle) Megabalanus coccopoma (Titan Acorn ...


9

I don't know if these are his earliest descriptions but Darwin did describe several species of Planaria, such as Planaria vaginuloides, P. oceania, plus a new genus, Diplanaria in 1844. Darwin, C. R. 1844. Brief descriptions of several terrestrial planariæ, and of some remarkable marine species, with an account of their habits. Annals and Magazine of ...



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