Hi all,

I'm trying to identify a couple of epibiont phyllodocids of gorgonians from shallow waters, from eastern Pacific (Ecuador). 

The specimens are pretty small (few milimetres), have four filiform antennae, no nuchal papillae, the prostomium is cordiform (as in Phyllodoce spp) with delineated protuberance at insertion of paired antennae, eyes are present at the posteriormost part of the prostomium which dorsally covers the first segment. There are three pairs of cirriform tentacular cirri, being the tentacular formula 0 1/0 + S 1/1 + S 0/V (the third segment lacks of dorsal cirrus). Chaetae appear from segment 2. Dorsal cirri are oval, bigger than ventral cirri, which are rounded and pretty small. 

At first glance, I thought they could belong to the genus Mystides, but the prostomium and tentacular cirri are completely different. I'm pretty lost with these specimens. Could anybody help me with the identification? I could try to take some photos if needed.