The middle one is essentially a colorized version of the pycnogonid (sea spider) and Pompeii worm artwork I did in black and white for Chris Garcia's fanzine The Drink Tank a month or two ago. From Wordnik.com. [Not to be flippant...] Reference
A while back, I reported on a study of pycnogonids, the sea spiders, that appeared to show that that might not be the case: on the basis of neural organization and innervation, that study showed that the way pycnogonid chelifores a pair of large, fang-like structures at the front of the head were innervated suggested that they were homologous to great appendages. From Wordnik.com. [The Panda's Thumb: May 2006 Archives] Reference
A deep-sea pycnogonid, or sea spider, holds two detached tentacles of a sea anemone in its mouth amid the mollusk shells and whale bones that have settled on the sea floor. From Wordnik.com. [ScienceNOW] Reference
A pycnogonid, or "sea spider.". From Wordnik.com. [Yeah!] Reference
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