| Disconatis | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Annelida |
| Class: | Polychaeta |
| Order: | Phyllodocida |
| Family: | Polynoidae |
| Genus: | Disconatis Hanley & Burke, 1988 |
| Type species | |
| Disconatis contubernalis Hanley & Burke, 1988 [1] | |
Disconatis is a genus of marine annelids in the family Polynoidae (scale worms). The genus includes two species which are both commensal with other kinds of marine Annelida and occur in Australia and New Zealand. [2]
As at September 2020, there are two species within Disconatis:
Disconatis is a long-bodied genus with up to 152 segments and 22–80 pairs of elytra which are small and translucent; the first pair are much larger than the following elytra. The lateral antennae are inserted ventral to the median antenna. The notopodium is vestigial and notochaetae are absent. The neuropodium is rounded and the neurochaetae are uinidentate but have serrations on the convex side. [2]
Both known species of Disconatis are commensal, with each species living in the tubes of marine annelids in a different family: Arenicolidae and Maldanidae.
Arctonoe is a genus belonging to the family Polynoidae, worms commonly known as "scale worms". Members of this genus predominantly occur in shallow waters of the North-east Pacific Ocean and often live as commensals of other marine invertebrates, frequently echinoderms but sometimes molluscs or other polychaetes.
Acanthicolepis is a genus of marine annelids in the family Polynoidae. The genus was described in 1990 and includes two short-bodied species with up to 50 segments and which occur in the Mediterranean Sea and North-east Atlantic Ocean.
Australaugeneria is a genus of marine annelids in the family Polynoidae. The genus includes 4 species which are commensal on octocorals.
Australonoe willani is a species of marine annelids in the family Polynoidae, and the sole member of the genus Australonoe, known only from the south-east Indian Ocean at Rottnest Island, Western Australia.
Bathyeliasona is a genus of marine annelids in the family Polynoidae. The genus includes 4 abyssal and bathyal species which occur widely in the Atlantic, Pacific and Indian oceans, from depths of 2500 to 8000 m.
Antipathipolyeunoa is a genus of marine annelids in the family Polynoidae. The genus contains a single species, Antipathipolyeunoa nuttingi, found in the Caribbean Sea at a depth of 91 metres.
Austropolaria is a genus of marine annelids in the family Polynoidae. The genus includes a single species, Austropolaria magnicirrata, which is known only from the Amundsen Sea in the Southern Ocean, at depths of 1000 to 1500m.
Benhamipolynoe is a genus of marine annelids in the family Polynoidae. The genus is known from the Pacific and Atlantic Oceans and includes 2 species.
Parahololepidella is a genus of marine annelids in the family Polynoidae. The genus contains a single species, Parahololepidella greeffi, This species is known from the east equatorial Atlantic Ocean and Cape Verde Islands at a maximum depth of 30m.
Polyeunoa is a genus of marine annelids in the family Polynoidae. The genus contains a two species, with only P. laevis being widespread and abundant in the Southern Ocean.
Bathynotalia is a genus of marine annelids in the family Polynoidae. The only species, Bathynotalia perplexa, is known from a single specimen collected at 4395m in the Tasman Sea south of Tasmania, Australia.
Bathytasmania is a genus of marine annelids in the family Polynoidae. The only species, Bathytasmania insolita, is known from a single specimen collected at 4395m in the Tasman Sea south of Tasmania, Australia.
Bathynoe is a genus of marine annelids in the family Polynoidae. The genus includes 6 species, 5 of which occur in the Pacific Ocean while one occurs in the Atlantic Ocean. Bathynoe species have been recorded from depths of about 500 – 3000 m.
Eucranta is a genus of marine annelids in the family Polynoidae. The genus includes 5 species which are globally distributed from depths of about 40 to 600 m, mostly from high latitudes in the northern and southern hemispheres.
Robertianella is a genus of marine annelids in the family Polynoidae. There are 2 species of Robertianella which are known from depths of about 600 to 3000 m in the north-east Atlantic Ocean and the Mediterranean Sea.
Brychionoe is a genus of marine annelids in the family Polynoidae. The genus includes a single species, Brychionoe karenae, which is long-bodied and occurs in the Tasman Sea at depths of 1100–1300 m.
Capitulatinoe is a genus of marine annelids in the family Polynoidae. The genus includes a single species, Capitulatinoe cupisetis which occurs intertidally in northwestern Australia.
Disconatis accolus is only known from New Zealand where it is commensal in the tubes of marine annelids of the family Arenicolidae.
Disconatis contubernalis is only known from Australia where it is commensal in the tubes of marine annelids of the family Maldanidae.
Pareulagisca is a genus of marine annelids in the family Polynoidae. The genus contains a single species, Pareulagisca panamensis, known from a single specimen, collected intertidally in Panama in the Pacific Ocean.