Janolus is a genus of small to large sea slugs, or more accurately nudibranchs, marine gastropod mollusks, in the family Janolidae. The name Janolus is derived from the two-headed god Janus, in ancient Roman mythology.
Diaulula sandiegensis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Discodorididae.
Doriopsilla albopunctata, the white-spotted sea goddess, is a species of dorid nudibranch, a colorful sea slug, in the family Dendrodorididae. It is native to the Pacific Coast of North America, from Mendocino County, California south, possibly to Baja California Peninsula, Mexico.
Doriprismatica sedna is a species of colorful sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.
Doris odhneri is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Dorididae. It is known by many common names, such as: giant white nudibranch, giant white dorid, and white-knight nudibranch. It is also often referred to as Odhner's dorid to honor Nils Hjalmar Odhner, the scientist it is named after.
Rostanga pulchra is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.
The alabaster nudibranch, white-lined Dirona, or frosted sea slug is an Eastern Pacific Ocean opisthobranch gastropod mollusk in the family Dironidae.
Acanthodoris nanaimoensis, the Nanaimo horned dorid, is a species of dorid nudibranch, a shell-less marine gastropod mollusc in the family Onchidorididae.
Dendronotus iris, also known as the rainbow nudibranch, is a species of sea slug, a dendronotid nudibranch, a shell-less marine gastropod mollusc in the family Dendronotidae.
Cadlina flavomaculata, common name the yellow-spot cadlina, is a species of colourful sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Cadlinidae.
Antiopella longidentata, previously named Janolus longidentatus, the medallion silvertip nudibranch, is a species of nudibranch, or sea slug. It is a marine gastropod mollusc in the family Proctonotidae.
Felimare porterae is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae. It was named by Theodore Dru Alison Cockerell in honor of his wife Wilmatte Porter Cockerell.
Antiopella cristata, sometimes known by the common name crested aeolis, is a species of nudibranch, a marine gastropod mollusc in the family Janolidae.
Trinchesia albocrusta, common name white-crusted aeolid, is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.
Trinchesia virens is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.
Acanthodoris brunnea, common name the brown horned dorid, is a species of sea slugs, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Onchidorididae.
Charles Henry O'Donoghue FRSE FZS was an English zoologist who studied molluscs, a malacologist. His publications mostly deal with sea slugs and he also named a number of Bryozoans. A collection of over 700 items left to the University of Reading is known as the O'Donoghue Collection.
Dirona picta, common name colorful dirona, is a species of sea slug, an Eastern Pacific Ocean nudibranch, a marine, opisthobranch gastropod mollusk in the family Dironidae.
Corambe steinbergae is a species of sea slug, an Eastern Pacific Ocean nudibranch, a marine, opisthobranch gastropod mollusk in the family Corambidae.
Hancockia californica is a species of sea slug, an Eastern Pacific Ocean nudibranch, a marine, opisthobranch gastropod mollusk in the family Hancockiidae.
