The marine Polychaete Annelid (Augeneriella dubia) is a microscopic Feather Duster Worm or Fan Worm with a segmented body topped by three pairs of finger-like radioli or tentacles that function in filter feeding and respiration. The head also includes a pair of antennae, tentacle-like palps, and a pair of cilia-lined pits known as nuchal organs that appear to be chemoreceptors that help the worm find food. Each body segment has a pair of fleshy protrusions or parapodia that bear many chitinous bristles or setae used for movement. SEM X35
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