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Triopha catalinae 1.jpg
A live individual of Triopha catalinae , in situ , head end towards the lower left
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Doridina
Superfamily: Polyceroidea
Family: Polyceridae
Subfamily: Triophinae
Genus: Triopha
Bergh, 1880 [1]

Triopha is a genus of colorful sea slugs, nudibranchs, shell-less marine gastropod mollusks in the family Polyceridae.



Species within the genus Triopha include:

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Nudibranch Order of gastropods

Nudibranchs are a group of soft-bodied, marine gastropod molluscs which 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," or "sea rabbit." Currently, about 3,000 valid species of nudibranchs are known.

Muricidae Family of molluscs

Muricidae is a large and varied taxonomic family of small to large predatory sea snails, marine gastropod mollusks, commonly known as murex snails or rock snails. With about 1,600 living species, the Muricidae represent almost 10% of the Neogastropoda. Additionally, 1,200 fossil species have been recognized. Numerous subfamilies are recognized, although experts disagree about the subfamily divisions and the definitions of the genera. Many muricids have unusual shells which are considered attractive by shell collectors and by interior designers.

Strombidae Family of molluscs

Strombidae, commonly known as the true conchs, is a taxonomic family of medium-sized to very large sea snails in the superfamily Stromboidea. The term true conchs, being a common name, does not have an exact meaning. It may refer generally to any of the Strombidae but sometimes is used more specifically to include only Strombus and Lambis. The family currently includes 23 extant, and 10 extinct genera.

Body whorl

The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk.

Whorl (mollusc)

A whorl is a single, complete 360° revolution or turn in the spiral growth of a mollusc shell. A spiral configuration of the shell is found in numerous gastropods, but it is also found in shelled cephalopods including Nautilus, Spirula and the large extinct subclass of cephalopods known as the ammonites.

Varix (mollusc)

A varix is an anatomical feature of the shell of certain sea snails, marine gastropod molluscs. Gastropods whose shells have varices are primarily families and species within the taxonomic groups Littorinimorpha and Neogastropoda.

<i>Bellerophon</i> (genus) Extinct genus of gastropods

Bellerophon is a genus of extinct paleozoic marine molluscs of uncertain position in the family Bellerophontidae.

Sea snail Common name for snails that normally live in saltwater

Sea snail is a common name for slow moving marine gastropod molluscs usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible shell.

Polyceridae Family of gastropods

The Polyceridae are a taxonomic family of sea slugs, dorid nudibranchs, marine gastropod mollusks within the superfamily Polyceroidea.

Neritidae Family of gastropods

Neritidae, common name the nerites, is a taxonomic family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive operculum.

Marginellidae Family of sea snails

Marginellidae, or the margin shells, are a taxonomic family of small, often colorful, sea snails, marine gastropod molluscs in the clade Neogastropoda.

Trochoidea (superfamily) Superfamily of sea snails

Trochoidea is a superfamily of small to very large vetigastropod sea snails with gills and an operculum. Species within this superfamily have nacre as the inner shell layer. The families within this superfamily include the Trochidae, the top snails. This superfamily is the largest vetigastropodan superfamily, containing more than 2,000 species.

Columella (gastropod)

The columella or pillar is a central anatomical feature of a coiled snail shell, a gastropod shell. The columella is often only clearly visible as a structure when the shell is broken, sliced in half vertically, or viewed as an X-ray image.

<i>Triopha catalinae</i> Species of gastropod

Triopha catalinae, commonly known as the sea clown triopha or sea clown, is a species of colorful sea slug called a nudibranch. Sea clowns are a shell-less marine, gastronomic mollusk in the taxonomic family Polyceridae.

<i>Triopha maculata</i> Species of gastropod

Triopha maculata, common name spotted triopha or speckled triopha, is a species of colorful sea slug, a nudibranch, a shell-less marine gastropod mollusk in the family Polyceridae. This species is very variable in color.

Cladobranchia Clade of gastropods

The Cladobranchia are a taxonomic clade of nudibranchs, sea slugs, marine gastropod molluscs in the clade Dexiarchia.

Freshwater snail

Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs to major rivers. The great majority of freshwater gastropods have a shell, with very few exceptions. Some groups of snails that live in freshwater respire using gills, whereas other groups need to reach the surface to breathe air. In addition, some are amphibious and have both gills and a lung. Most feed on algae, but many are detritivores and some are filter feeders.

Philippe Bouchet French biologist

Philippe Bouchet is a French biologist whose primary scientific fields of study are malacology and taxonomy. He works at the Muséum National d'Histoire Naturelle in Paris. He is also a Commissioner of the International Commission on Zoological Nomenclature.

Marginellinae Subfamily of sea snails

Marginellinae is a taxonomic subfamily within the larger family of Marginellidae, a group of small sea snails, marine gastropod molluscs in the superfamily Volutoidea.

Frank Mace MacFarland

Frank Mace MacFarland (1869–1951) was an American malacologist associated with Stanford University in California. Born in Centralia, Illinois, MacFarland attended DePauw University, Stanford University and the University of Wurzburg. On August 27, 1902, MacFarland married Olive Knowles Hornbrook. Mrs. MacFarland was a skilled technician and artist whose delicate watercolor paintings illustrated many of his scientific publications.


  1. Bergh R. (1880). In: Dall Explor. Alaska1, art. 6, 261.