Amphinomida

Amphinomida
	Hermodice carunculata
Systematics
Over trunk :	Lophotrochozoa (Lophotrochozoa)
Trunk :	Annelids (Annelida)
Class :	Polychaete (Polychaeta)
Subclass :	Palpata
Order :	Aciculata
Subordination :	Amphinomida
Scientific name
	Amphinomida
	Dales , 1962

Amphinomida is the name of a subordination of mobile or in tubes as predators or scavengers living polychaete (Polychaeta) in the order Aciculata and subclass Palpata , which are found in oceans around the world and the two families Amphinomidae and Euphrosinidae includes.

features

The amphinomida have an elongated or oval body that can be a few millimeters to 50 cm long. Well developed branched gills sit on the parapodia . This group is characterized by strong bristles with embedded calcium carbonate , which break off when touched, remain in the skin of the person being touched and cause inflammation. Thus, the amphinomida are protected from many predators. In addition, the group is characterized by a reduced prostomium , which is surrounded by the first segments. The peristomium is reduced to lips. The muscular pharynx has neither jaws nor teeth.

Distribution, habitat and way of life

The amphinomida are distributed in oceans worldwide from the intertidal zone to the deep sea, but they are particularly found in shallow warm waters. They move as active ground dwellers on sandy, muddy or rocky surfaces and feed on carrion or live prey , mostly sessile animals such as sponges or cnidarians , which are rasped off with their hard lower lip (peristomium).

Systematics

The following two families are included in the subordination of Amphinomida :

Amphinomidae Lamarck, 1818
Euphrosinidae Williams, 1852

literature

Rodney Phillips Dales (1962): The polychaete stomatodeum and the inter-relationship of the families of the Polychaeta. Proceedings of the Zoological Society of London 139, pp. 389-428.
Stanley J. Edmonds: Fauna of Australia, Volume 4A. Polychaetes & Allies. The Southern Synthesis 4. Commonwealth of Australia, 2000. Class Polychaeta. P. 144, amphinomidans.
Greg W. Rouse, Kristian Fauchald (1998): Recent views on the status, delineation, and classification of the Annelida. (PDF). American Zoologist. 38 (6), pp. 953-964. doi: 10.1093 / icb / 38.6.953

Web links

Commons : Amphinomida - collection of pictures, videos and audio files

Fredrik Pleijel and Greg W. Rouse: Amphinomida. In: The Tree of Life Web Project, 2004.

Individual evidence

↑ Amphinomida. WoRMS , 2018. Retrieved June 14, 2018.

[1] Amphinomida. WoRMS , 2018. Retrieved June 14, 2018.