Metridiidae
| Metridiidae | |
|---|---|
 | |
| Metridium senile | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Anthozoa |
| Subclass: | Hexacorallia |
| Order: | Actiniaria |
| Family: | Metridiidae Carlgren, 1893 [1] |
Metridiidae is a family of sea anemones in the order Actiniaria.[2]
Characteristics
Members of the family Metridiidae are characterised by having a mesogloeal sphincter muscle and by the mesenterial arrangement, with the mesenteries not being divided into macronemes and microcnemes. The acontia typically have microbasic b-mastigophors and microbasic amastigophors, though the latter are not always present in adults.[1]
Genera
The following three genera are recognised by the World Register of Marine Species (WoRMS): [2]
- Isometridium
- Metridium - de Blainville, 1824
- Paraisometridium
Of these genera, Metridium is the most speciose while Isometridium and Paraisometridium are monotypic taxa.
References
- ↑ 1.0 1.1 Metridiidae KU Natural History Museum. Retrieved 2011-08-05.
- ↑ 2.0 2.1 Metridiidae World Register of Marine Species. Retrieved 2011-08-05.