Oikopleura dioica, Oikopleura dioica is a species of small pelagic tunicate found in the surface waters of most of the world's oceans. It is used as a model organism in research into developmental biology.is the only species of appendicularian to have separate sexes; others are hermaphrodites. They secrete mucus filtering structures called houses. Phylum‎: ‎Chordata, Class‎: ‎Appendicularia
Genus‎: ‎Oikopleura; Lohmann, 1896 Family‎: ‎Oikopleurida ID from Wyatt Patry., Black Water Dive onboard Sirena, Gulfstream Current over 600' depth