WProctonotidae is a family of sea slugs, nudibranchs, marine gastropod molluscs, in the clade Euthyneura.
WAntiopella barbarensis, common name Santa Barbara janolus, is a colourful sea slug, a cladobranch nudibranch, a marine gastropod mollusc in the family Janolidae.
WAntiopella cristata, sometimes known by the common name crested aeolis, is a species of nudibranch, a marine gastropod mollusc in the family Janolidae.
WThe gasflame nudibranch is a very colourful species of nudibranch, or sea slug. It is a marine gastropod mollusc in the family Proctonotidae. Bonisa nakaza is the only species in the genus Bonisa.
WJanolus is a genus of small to large sea slugs, or more accurately nudibranchs, marine gastropod mollusks, in the family Proctonotidae. The name Janolus is derived from the two-headed god Janus, in ancient Roman mythology.
WJanolus capensis, the Cape silvertip nudibranch, is a beautiful species of nudibranch, or sea slug. It is a marine gastropod mollusc in the family Proctonotidae.
WJanolus fuscus is a species of sea slug, or more accurately a nudibranch, a marine gastropod mollusk in the family Proctonotidae.
WJanolus longidentatus, the medallion silvertip nudibranch, is a spectacular-looking species of nudibranch, or sea slug. It is a marine gastropod mollusc in the family Proctonotidae.
WJanolus savinkini, common name purple-tipped janolus, is a colorful sea slug, an arminina nudibranch, a marine gastropod mollusc in the family Proctonotidae. The body and caruncle of this species are yellow with a hue of light orange. The papillae and cerata are also this colour except for the tips, which are blue/purple, hence the common name. It is found in East Asian waters and is believed to be extremely rare in Okinawa.
WJanolus toyamensis, common name purple-tipped janolus, is a colorful sea slug, an arminina nudibranch, a marine gastropod mollusc in the family Proctonotidae.