| Favorinus tsuruganus | |
|---|---|
 | |
| The nudibranch Favorinus tsuruganus, Rinca, Indonesia. | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Order: | Nudibranchia |
| Suborder: | Cladobranchia |
| Family: | Facelinidae |
| Genus: | Favorinus |
| Species: | F. tsuruganus |
| Binomial name | |
| Favorinus tsuruganus | |
Favorinus tsuruganus is a species of aeolid nudibranch, a sea slug. It is a marine gastropod mollusk in the family Facelinidae. [2]
Favorinus tsuruganus grows to a maximum length of 25 mm. [3] The back and oral tentacles are opaque white and there is a yellow patch on the front of the head. The rhinophores are black, and swell in a collar-like shape in three places. The cerata have black tips with the digestive gland duct being orange, a distinguishing feature of this species. [4]
This species occurs in Japan, more rarely in eastern Australia down to around Sydney, and has a wide western Pacific distribution. [3] [5]
Favorinus tsuruganus feeds on the eggs of a wide range of other opisthobranchs, in particular, Hexabranchus. [3] [4]
Nudibranchs belong to the order Nudibranchia, a group of soft-bodied marine gastropod molluscs that shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown", "marigold", "splendid", "dancer", "dragon", and "sea rabbit". Currently, about 3,000 valid species of nudibranchs are known.
The Spanish dancer, scientific name Hexabranchus sanguineus, is a dorid nudibranch, a very large and colorful sea slug, a marine gastropod mollusk in the family Hexabranchidae.The taxonomy of the genus Hexabranchus has been controversial but a thorough molecular and morphological study published in 2023 showed that the name H. sanguineus was being used for at least 5 distinct species.
Godiva is a genus of sea slugs, a nudibranch, a shell-less marine gastropod mollusks in the family Facelinidae.
Phyllidia babai is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae.
Juliidae, common name the bivalved gastropods, is a family of minute sea snails, marine gastropod mollusks or micromollusks in the superfamily Oxynooidea, an opisthobranch group.
Tambja morosa, also known as Tambja kushimotoensis or gloomy nudibranch, is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the subfamily Nembrothinae within the family Polyceridae.
The Facelinidae are a taxonomic family of colorful sea slugs. These are specifically aeolid nudibranchs. They are marine gastropod molluscs.
Kikutaro Baba was a Japanese malacologist. He was the leading researcher on sea slugs and bubble snails, opisthobranch gastropod mollusks in Japan.
Tyrannodoris luteolineata is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.
Hypselodoris sagamiensis is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.
Phyllodesmium iriomotense is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.
Antonietta janthina is a colourful species of sea slug or aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.
Elysia trisinuata 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 belonging to another clade, Sacoglossa, the "sap-sucking" sea slugs.
Favorinus is a genus of small sea slugs, aeolid nudibranchs, marine gastropod mollusks in the family Facelinidae.
Trinchesia beta is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.
Tenellia diversicolor is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Fionidae.
Cerberilla asamusiensis is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Aeolidiidae.
Pleurolidia juliae is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Pleurolidiidae.
Eubranchus inabai is a species of sea slug or nudibranch, a marine gastropod mollusc in the family Eubranchidae.
Biuve fulvipunctata, the white-speckled headshield slug, is a species of sea slug or headshield slug, a marine opisthobranch gastropod mollusc in the family Aglajidae. This species is widespread in the Indian and Pacific Oceans but has invaded the Mediterranean Sea since 1961, despite apparently being absent from the Red Sea until recorded there in the 21st century. It is the only species in the monotypic genus Biuve.
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