| Euthecosomata | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Informal group: | Opisthobranchia |
| Informal group: | Pteropoda |
| Suborder: | Euthecosomata Meisenheimer, 1905 |
Euthecosomata is a taxonomic unit used to classify sea snails. [1] It is a suborder of the order Pteropoda. [2]
Sea butterflies, scientific name Thecosomata, are a taxonomic suborder of small pelagic swimming sea snails. These are holoplanktonic opisthobranch gastropod mollusks in the informal group Opisthobranchia. They include some of the world's most abundant gastropod species.
The superfamily Cavolinioidea is the most speciose group of sea butterflies. They belong to the suborder Euthecosomata.
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called "sea angels".
Pteropoda are specialized free-swimming pelagic sea snails and sea slugs, marine opisthobranch gastropods. Most live in top 10 m of the ocean and are less than 1 cm long. The monophyly of Pteropoda is the subject of a lengthy debate; they have even been considered as paraphyletic with respect to cephalopods. Current consensus, guided by molecular studies, leans towards interpreting the group as monophyletic.
Pyramidellinae is a taxonomic subfamily of minute sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Orthalicidae are a family of tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks are classified in the subfamily Orthalicoidea of the order Stylommatophora.
Turritellidae, common name the "tower shells" or "tower snails", is a taxonomic family of small to medium-sized sea snails, marine gastropod molluscs in the clade Sorbeoconcha.
Scolodontidae is a taxonomic family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Scolodontoidea
Euconulus alderi is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Euconulidae, the hive snails.
Hygromia limbata is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae.
Myosotella is a European genus or subgenus of small, salt marsh snails, terrestrial pulmonate gastropod mollusks in the subfamily Pythiinae of the family Ellobiidae.
The taxonomy of the Gastropoda, as revised by Winston Ponder and David R. Lindberg in 1997, is an older taxonomy of the class Gastropoda, the class of molluscs consisting of all snails and slugs. The full name of the work in which this taxonomy was published is Towards a phylogeny of gastropod molluscs: an analysis using morphological characters.
Apogastropoda was previously used as a major taxonomic grouping of sea snails, marine gastropod molluscs. This infraclass mostly consisted of marine limpets and operculate snails. At least 20,000 species were considered to exist within the two clades that were included, Heterobranchia and Caenogastropoda.
Lottioidea is a superfamily of sea snails or limpets, marine gastropod mollusks in the clade Patellogastropoda, the true limpets.
The family Cavoliniidae is a taxonomic group of small floating sea snails, pelagic marine opisthobranch gastropod mollusks.
Colus jeffreysianus is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks.
Atlanta brunnea is a species of sea snail, a holoplanktonic marine gastropod mollusk in the family Atlantidae.
Granotoma albrechti is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
Cymakra poncei is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.
The family Hyalocylidae is a taxonomic group of small floating sea snails, pelagic marine opisthobranch gastropod mollusks.