WAcanella is a genus of deep-sea bamboo coral of the family Isididae, containing the following species: Acanella are mainly studied and found in Hawaii, they are able to survive in high-flow sites and are preyed upon by nudibranch mollusks. It has a high fecundity and small size that allows high dispersal and recruitment; however, it has been classified as a vulnerable marine organism due to its vulnerability to bottom fishing gear.Acanella africana Kükenthal, 1915 Acanella arbuscula (Johnson, 1862) Acanella aurelia Saucier & France, 2017 Acanella chiliensis Wright & Studer, 1889 Acanella dispar Bayer, 1990 Acanella furcata Thomson, 1929 Acanella gregori (Gray, 1870) Acanella microspiculata Aurivillius, 1931 Acanella rigida Wright & Studer, 1889 Acanella robusta Thomson & Henderson, 1906 Acanella scarletae Saucier & France, 2017 Acanella verticillata Kükenthal, 1915 Acanella weberi Nutting, 1910
WAnthelia is a genus of soft corals in the family Xeniidae.
WAnthomastus is a genus of soft corals in the family Alcyoniidae.
WCavernularia is a genus of marine cnidarians in the family Veretillidae.
WCespitularia is a genus of soft corals in the family Xeniidae.
WCirrhipathes is a genus of black coral from the family Antipathidae. Coral species in this genus are commonly known as whip or wire corals because they often exhibit a twisted or coiled morphology. In addition to their colorful appearance, with colors ranging from yellow to red passing through blue and green, these species possess a dark skeleton that is characteristic to every black coral.
WClavularia is a genus of corals in the family Clavulariidae. They are often referred by the common names star polyps or glove polyps.
WEllisella, commonly known as sea whip, is a genus of soft coral in the family Ellisellidae.
WErythropodium is a genus of soft coral in the family Anthothelidae.
WHeliopora is a genus of cnidarian in the monotypic family Helioporidae. It consists of three species, one of which is known only from fossils:Heliopora coerulea (Pallas, 1766) - blue coral Heliopora fijiensis† Hoffmeister, 1945 Heliopora hiberniana sp. nov., 2018
WIciligorgia is a genus of soft coral in the family Anthothelidae.
WIsidella is a genus of deep-sea bamboo coral in the family Isididae.
WKeratoisis is a genus of deep-sea bamboo coral in the family Isididae, containing the following species:
WLepidisis is a genus of deep-sea bamboo coral in the family Isididae. It contains the following species:
WNanipora is a monotypic genus of cnidarian in the family Lithotelestidae. It consists of one species, Nanipora kamurai.
WOvabunda is a genus of soft corals in the family Xeniidae.
WParagorgia is a genus of soft coral in the family Paragorgiidae.
WParazoanthus is a genus of anemone-like anthozoans in the order Zoantharia.
WPennatula is a genus in the family Pennatulidae. The genus contains bioluminescent species.
WRenilla is a genus of sea pen. It is the only genus within the monotypic family Renillidae.
WStylophora is a genus of colonial stony corals in the family Pocilloporidae. They are commonly known as cat's paw corals or birdsnest corals. They are native to the Red Sea, the Indo-Pacific region and eastwards as far as the Pitcairn Islands.
WUmbellula is a genus of cnidarians in the family Umbellulidae. The genus contains bioluminescent species.
WVeretillum is a genus in the family Veretillidae. The genus contains bioluminescent species.
WVirgularia is a genus of sea pen in the family Virgulariidae.