| Robertianella | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Annelida |
| Class: | Polychaeta |
| Order: | Phyllodocida |
| Family: | Polynoidae |
| Genus: | Robertianella McIntosh, 1885 |
| Type species | |
| Polynoe (Robertianella) synophthalma McIntosh, 1885 | |
Robertianella is a genus of marine annelids in the family Polynoidae (scale worms). 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. [1]
Robertianella are short-bodied scale worms with 33 to about 43 segments and 15 pairs of elytra. The prostomium is bilobed anteriorly and each lobe has a small prominence ("cephalic peak") on the anterior margin. The lateral antennae are located ventrally, directly beneath median antenna ceratophore. The neuropodia are elongate and tapering. The notochaetae are about as thick as the neurochaetae and both are ornamented with tranverse rows of small spines. The neurochaetae are distinctive, with minutely notched tips. [2]
Two species of Robertianella are recognised as valid as of September 2020: [1]
Adyte hyalina is a species of marine annelids in the family Polynoidae and the only accepted species in the genus Adyte. Adyte hyalina occurs in the North-east Atlantic Ocean and Mediterranean Sea, at depths down to about 150 metres.
Leucia is a genus of marine polychaete worms belonging to the family Polynoidae, the scaleworms. Leucia contains 2 species, both found in the northern Atlantic Ocean. This genus is distinguished from the closely related genus Harmothoe by having sixteen pairs of elytra, as opposed to fifteen.
Leucia nivea is a species of polychaete worm, commonly known as a "scale worm", in the family Polynoidae. This species occurs in the northeastern Atlantic Ocean, the North Sea and the Mediterranean Sea.
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.
Eunoe tuerkayi is a scale worm described from the Mediterranean Sea at depths of about 30m.
Polyeunoa laevis is a scale worm which is widely distributed in the Southern Ocean and occurs over a wide depth range, from 35m to 2450m.
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.
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.
Austrolaenilla is a genus of marine annelids in the family Polynoidae. The genus includes 10 species which are known from depths of about 20 m to over 5000 m and from the Atlantic Ocean, Southern Ocean and Antarctic Ocean.
Bylgides is a genus of marine annelids in the family Polynoidae. The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 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.
Hartmania is a genus of marine polychaete worms belonging to the family Polynoidae, the scaleworms. Hartmania contains a single species, Hartmania moorei which is known from the north-west Atlantic Ocean off the coast of North America from shallow water to depths of about 80 m.
Vampiropolynoe is a genus of marine polychaete worms belonging to the family Polynoidae, the scaleworms. Vampiropolynoe contains a single species, Vampiropolynoe embleyi which is known from hydrothermal vents in the South Pacific Ocean at a depth of about 1500 m.
Yodanoe is a genus of marine polychaete worms belonging to the family Polynoidae, the scaleworms. Yodanoe contains a single species, Yodanoe desbruyeresi which is known from the Clarion-Clipperton Fracture Zone in the equatorial East Pacific Ocean at a depth of almost 5000 m.
Ysideria is a genus of marine polychaete worms belonging to the family Polynoidae, the scale worms. Ysideria contains a single species, Ysideria hastata which is known from the North Pacific Ocean off the coast of California at depths of about 50–60 m.
Verrucapelma is a genus of marine annelids in the family Polynoidae. Verrucapelma contains three species which are known from shallow water down to a depth of about 90 m. All three species occur in the Indo-Pacific region, in the Coral Sea, northern Australia and the Indonesian archipelago.
Gattyana is a genus of marine annelids in the family Polynoidae. The genus includes 11 species, 9 of which occur in the northern hemisphere, the remaining two are from the Indian Ocean off Mozambique and the Southern Ocean off New Zealand. Species of Gattyana are known from shallow water down to depths of about 1200 m.
Gattyana nutti is a scale worm known from the North Atlantic Ocean off the coast of North America at depths down to about 120 m.
Gattyana treadwelli is a scale worm known from the north-west Pacific and Arctic Oceans from depths down to about 30 m.