Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are gastropods, i.e. they are sea snails that, over evolutionary time, have either entirely lost their shells or have seemingly lost their shells due to having a significantly reduced or internal shell. The name "sea slug" is often applied to nudibranchs and a paraphyletic set of other marine gastropods without apparent shells.
Sir Charles Norton Edgcumbe Eliot was a British diplomat, colonial administrator and botanist. He served as Commissioner of British East Africa in 1900–1904. He was British Ambassador to Japan in 1919–1925.
Stiliger is a genus of small and minute sacoglossan or sap-sucking sea slugs. They are marine gastropod mollusks in the family Limapontiidae.
Placida dendritica is a species of minute sea slug, a marine opisthobranch gastropod mollusk or micromollusk in the family Limapontiidae.
Chelidonura varians is a species of small sea slug, a marine opisthobranch gastropod mollusc in the order Cephalaspidea, the headshield slugs.
Halgerda willeyi is a species of sea slug. It is a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.
Elysia maoria is a species of marine gastropod mollusk in the family Plankobranchidae. It is found off of New Zealand.
Polybranchia is a genus of sacoglossan sea slugs, shell-less marine opisthobranch gastropod mollusks in the family Hermaeidae.
Ercolania is a genus of small sacoglossan sea slugs, shell-less marine opisthobranch gastropod mollusks in the family Limapontiidae.
Ercolania irregularis is a species of sacoglossan sea slug, a shelless marine opisthobranch gastropod mollusk in the family Limapontiidae.
Ercolania tentaculata is a species of sacoglossan sea slug, a shell-less marine opisthobranch gastropod mollusk in the family Limapontiidae. It is estuarine.
Ercolania zanzibarica is a species of sacoglossan sea slug, a shell-less marine opisthobranch gastropod mollusk in the family Limapontiidae.
Hermaea cruciata is a species of sacoglossan sea slug, a shell-less marine opisthobranch gastropod mollusk in the family Hermaeidae.
Elysia margaritae is a species of sea slug, a marine gastropod mollusc.
Elysia obtusa is a species of sea slug, a marine gastropod mollusc in the family Plakobranchidae. This sea slug resembles a nudibranch but is not closely related to that order of gastropods, instead it is a sacoglossan.
Gascoignella is a genus of sacoglossan sea slugs, marine gastropod mollusks in the family Platyhedylidae. This genus was first described in 1985 by Kathe Jensen.
Marionia levis is a species of dendronotid nudibranch. It is a marine gastropod mollusc in the family Tritoniidae and is found in shallow water in the Red Sea and Indian Ocean.
Tubulophilinopsis gardineri, the Gardiner’s philinopsis, or Gardiner's headshield slug is a species of sea slug, a shell-less opisthobranch gastropod mollusc in the family Aglajidae. It is native to the Indo-Pacific region.
Nemesignis is a genus of sea slugs, aeolid nudibranchs, marine gastropod mollusks in the family Myrrhinidae with only one species, Nemesignis banyulensis.
