| Isodiametridae | |
|---|---|
 | |
| Isodiametra pulchra | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Xenacoelomorpha |
| Order: | Acoela |
| Infraorder: | Crucimusculata |
| Family: | Isodiametridae Hooge & Tyler, 2005 |
| Isodiametridae | |
|---|---|
| | |
| Isodiametra pulchra | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Xenacoelomorpha |
| Order: | Acoela |
| Infraorder: | Crucimusculata |
| Family: | Isodiametridae Hooge & Tyler, 2005 |
The following genera are recognised in the family Isodiametridae: [1]
There are over 100 species recognised in the family Isodiametridae: [1]
Orthonectida is a small phylum of poorly known parasites of marine invertebrates that are among the simplest of multi-cellular organisms. Members of this phylum are known as orthonectids.
Xenoturbella is a genus of very simple bilaterians up to a few centimeters long. It contains a small number of marine benthic worm-like species.
Convolutidae is a family of acoels. It contains more than a third of all known acoel species.
Acoela, or the acoels, is an order of small and simple invertebrates in the subphylum Acoelomorpha of phylum Xenacoelomorpha, a deep branching bilaterian group of animals, which resemble flatworms. Historically they were treated as an order of turbellarian flatworms.
Nemertodermatida is a class of Acoela, comprising 18 species of millimetre-sized turbellariform, mostly interstitial worms.
Actinoposthiidae is a family of acoels.
Childia is a genus of Acoela. It is the only genus in the family Childiidae.
Dakuidae is a family of acoels.
Diopisthoporus is a genus of acoels. It is the only genus in the monotypic family Diopisthoporidae
Hallangiidae is a family of Acoela. It contains 2 species in 2 genera.
Panther worms belong to Hofsteniidae, a family of acoels. This family contains seven species in three genera.
Mecynostomidae is a family of Acoela.
Solenofilomorphidae is a family of acoels.
Proporidae is a family of acoels.
Paratomellidae is a family of acoels.
Otocelididae is a family of acoels.
Neppia is a genus of dugesiid triclad that is found in South America, Subantarctic region, Africa, Tasmania and New Zealand.
Xenacoelomorpha is a basal bilaterian phylum of small and very simple animals, grouping the xenoturbellids with the acoelomorphs. This grouping was suggested by morphological synapomorphies, and confirmed by phylogenomic analyses of molecular data. Xenacoelomorphs emerged with the Nephrozoa as sister clade.
Xenoturbella bocki is a marine benthic worm-like species from the genus Xenoturbella. It is found in saltwater sea floor habitats off the coast of Europe, predominantly Sweden. It was the first species in the genus discovered. Initially it was collected by Swedish zoologist Sixten Bock in 1915, and described in 1949 by Swedish zoologist Einar Westblad. The unusual digestive structure of this species, in which a single opening is used to eat food and excrete waste, has led to considerable study and controversy as to its classification. It is a bottom-dwelling, burrowing carnivore that eats mollusks.
Meara is a genus of bilaterally symmetric, small aquatic worms in the phylum Acoelomorpha. This genus contains only one species, Meara stichopi, a parasite of the sea cucumber Parastichopus tremulus. It occurs in Norway and Sweden.
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