''Umbellula'' is a genus of

cnidaria Cnidaria ( ) is a phylum under kingdom Animalia containing over 11,000 species of aquatic invertebrates found both in fresh water, freshwater and marine environments (predominantly the latter), including jellyfish, hydroid (zoology), hydroids, ...

ns in the monotypic family Umbellulidae. The genus contains bioluminescent species. Umbellula - MBA

References

*Williams, G.C.; van der Land, J. (2001). Octocorallia - Pennatulacea. in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels 50: pp. 105–106. *Williams, G.C. (1992). Biogeography of the octocorallian coelenterate fauna of southern Africa. Biol. J. Linn. Soc. 46: 351–401. *Williams, G.C. (1999). Index Pennatulacea: annotated bibliography and indexes of the Sea Pens (Coelenterata: Octocorallia) of the World 1469–1999. Proc. Calif. Acad. Sci. 51(2): 19–103, 1 fig., 14 plates. *Liu, J.Y. uiyu(ed.). (2008). Checklist of marine biota of China seas. China Science Press. 1267 pp. *Cairns, S.D.; Gershwin, L.; Brook, F.J.; Pugh, P.; Dawson, E.W.; Ocaña O.V.; Vervoort, W.; Williams, G.; Watson, J.E.; Opresko, D.M.; Schuchert, P.; Hine, P.M.; Gordon, D.P.; Campbell, H.J.; Wright, A.J.; Sánchez, J.A.; Fautin, D.G. (2009). Phylum Cnidaria: corals, medusae, hydroids, myxozoans. in: Gordon, D.P. (Ed.) (2009). New Zealand inventory of biodiversity: 1. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. pp. 59–101., available online at http://si-pddr.si.edu/handle/10088/8431 Octocorallia genera Bioluminescent cnidarians Umbellulidae Taxa named by John Edward Gray {{Octocorallia-stub

References

Further reading