Order : CEPHALASPIDEA
Superfamily : PHILINOIDEA
Family : Aglajidae
Tropical Indo-West Pacific, Caribbean.
Species of Chelidonura are characterised by the pair of tapering “tails”, (the genus name referring to the chela-like tails), and the mounds of sensory bristles on either side of the mouth. Sensory bristles are present in all aglajids, but they are most prominent in Chelidonura. Until a few weeks ago the food of Chelidonura was a mystery but thanks to participants to the Seaslug Forum we now know they feed on flatworms. Chelidonura hirundinina usually does not exceed 40mm, but is often much smaller.