WoRMS source details
Knight-Jones, Phyllis. (1983). Contributions to the taxonomy of Sabellidae (Polychaeta. Zoological Journal of the Linnean Society, London. 79: 245-295.
50652
10.1111/j.1096-3642.1983.tb01167.x [view]
Knight-Jones, Phyllis
1983
Contributions to the taxonomy of Sabellidae (Polychaeta
Zoological Journal of the Linnean Society, London
79: 245-295
Publication
World Polychaeta Database (WPolyDb)
Available for editors 
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The genus Potamilla Malmgren is particularly characterized by dorsal lips which lack any radiolar midrib; Pseudopotamilla Bush by compound radiolar eyes, dorsal collar lappets and flanges alongside the bases of the most dorsal radioles; Demonax Kinberg by a wide dorsal collar gap and companion setae with big heads and narrow blades; and Potamethus Chamberlin by an elongated first segment, enlarged ventral sacs, very long shafts to the thoracic uncini, and inferior abdominal setae much shorter than the superior ones. Perkinsiana gen. nov. lacks most of these characters, but the type species ‘Potamilla’ rubra Langerhans is remarkable in having red blood. It bores into limestone abundantly off S Wales and is here redescribed. Oriopsis hynensis sp. nov. from SW Ireland has a smooth collar set low on the first segment, with its ventral margin entire and free from the apex of the peristome. The new name Demonax langerhansi is proposed for Sabella (Potamilla) incerta Langerhans non Demonax incertus Kinberg.
Systematics, Taxonomy
Demonax Kinberg, 1867 accepted as Parasabella Bush, 1905 (additional source)
Demonax brachychona (Claparède, 1870) accepted as Parasabella saxicola (Grube, 1861) (new combination reference)
Demonax brevithoracicus (Pillai, 1961) accepted as Parasabella brevithoracica (Pillai, 1961) (new combination reference)
Demonax langerhansi Knight-Jones, 1983 accepted as Parasabella langerhansi (Knight-Jones, 1983) (original description)
Demonax oculeus (Pillai, 1965) accepted as Parasabella oculea (Pillai, 1965) (new combination reference)
Demonax saxicola (Grube, 1861) accepted as Parasabella saxicola (Grube, 1861) (redescription)
Gorbunovia Annenkova, 1952 accepted as Potamethus Chamberlin, 1919 (status source)
Oriopsis hynensis Knight-Jones, 1983 accepted as Amphicorina hynensis (Knight-Jones, 1983) (original description)
Perkinsiana Knight-Jones, 1983 (original description)
Perkinsiana acuminata (Moore & Bush, 1904) (new combination reference)
Perkinsiana assimilis (McIntosh, 1885) (new combination reference)
Perkinsiana ceylonica (Augener, 1926) (new combination reference)
Perkinsiana corcovadensis (Hartmann-Schröder, 1965) (new combination reference)
Perkinsiana fonticula (Hoagland, 1919) (new combination reference)
Perkinsiana linguicollaris (Day, 1961) (new combination reference)
Perkinsiana minuta (Treadwell, 1941) accepted as Sabellomma minutum (Treadwell, 1941) (new combination reference)
Potamethus Chamberlin, 1919 (redescription)
Potamethus littoralis Hartman, 1967 accepted as Perkinsiana magalhaensis (Kinberg, 1867) (source of synonymy)
Potamilla brevithoracica Pillai, 1961 accepted as Parasabella brevithoracica (Pillai, 1961) (new combination reference)
Potamilla ceylonica Augener, 1926 accepted as Perkinsiana ceylonica (Augener, 1926) (source of synonymy)
Potamilla incerta Langerhans, 1884 accepted as Parasabella langerhansi (Knight-Jones, 1983) (redescription)
Sabella (Potamilla) rubra Langerhans, 1880 accepted as Perkinsiana rubra (Langerhans, 1880) (new combination reference)
Sabella assimilis McIntosh, 1885 accepted as Perkinsiana assimilis (McIntosh, 1885) (source of synonymy)
Sabella brachychona Claparède, 1870 accepted as Parasabella saxicola (Grube, 1861) (source of synonymy)
Sabella murrayi McIntosh, 1916 accepted as Potamethus murrayi (McIntosh, 1916) (new combination reference)
Sabella saxicola Grube, 1861 accepted as Parasabella saxicola (Grube, 1861) (source of synonymy)
Demonax brachychona (Claparède, 1870) accepted as Parasabella saxicola (Grube, 1861) (new combination reference)
Demonax brevithoracicus (Pillai, 1961) accepted as Parasabella brevithoracica (Pillai, 1961) (new combination reference)
Demonax langerhansi Knight-Jones, 1983 accepted as Parasabella langerhansi (Knight-Jones, 1983) (original description)
Demonax oculeus (Pillai, 1965) accepted as Parasabella oculea (Pillai, 1965) (new combination reference)
Demonax saxicola (Grube, 1861) accepted as Parasabella saxicola (Grube, 1861) (redescription)
Gorbunovia Annenkova, 1952 accepted as Potamethus Chamberlin, 1919 (status source)
Oriopsis hynensis Knight-Jones, 1983 accepted as Amphicorina hynensis (Knight-Jones, 1983) (original description)
Perkinsiana Knight-Jones, 1983 (original description)
Perkinsiana acuminata (Moore & Bush, 1904) (new combination reference)
Perkinsiana assimilis (McIntosh, 1885) (new combination reference)
Perkinsiana ceylonica (Augener, 1926) (new combination reference)
Perkinsiana corcovadensis (Hartmann-Schröder, 1965) (new combination reference)
Perkinsiana fonticula (Hoagland, 1919) (new combination reference)
Perkinsiana linguicollaris (Day, 1961) (new combination reference)
Perkinsiana minuta (Treadwell, 1941) accepted as Sabellomma minutum (Treadwell, 1941) (new combination reference)
Potamethus Chamberlin, 1919 (redescription)
Potamethus littoralis Hartman, 1967 accepted as Perkinsiana magalhaensis (Kinberg, 1867) (source of synonymy)
Potamilla brevithoracica Pillai, 1961 accepted as Parasabella brevithoracica (Pillai, 1961) (new combination reference)
Potamilla ceylonica Augener, 1926 accepted as Perkinsiana ceylonica (Augener, 1926) (source of synonymy)
Potamilla incerta Langerhans, 1884 accepted as Parasabella langerhansi (Knight-Jones, 1983) (redescription)
Sabella (Potamilla) rubra Langerhans, 1880 accepted as Perkinsiana rubra (Langerhans, 1880) (new combination reference)
Sabella assimilis McIntosh, 1885 accepted as Perkinsiana assimilis (McIntosh, 1885) (source of synonymy)
Sabella brachychona Claparède, 1870 accepted as Parasabella saxicola (Grube, 1861) (source of synonymy)
Sabella murrayi McIntosh, 1916 accepted as Potamethus murrayi (McIntosh, 1916) (new combination reference)
Sabella saxicola Grube, 1861 accepted as Parasabella saxicola (Grube, 1861) (source of synonymy)
Holotype BMNH ZK 1885.12.1.386, geounit Rio de la Plata, identified as Sabella assimilis McIntosh, 1885
Etymology
Not stated. Clearly Oriopsis hynensis species name is a geographic adjective derived from the type locality, Lough Hyne. [details]
Holotype
Knight-Jones (1983: 280) called the specimen she examined the holotype. However, McIntosh (1885: 488) had a least ... [details]
Nomenclature
Knight-Jones (1983: 283) does not state the original genus, but P. ceylonica is recombined from Potamilla [details]
Taxonomy
Knight-Jones (1983:271) suggested the material described by Annenkova (1952) under the name Gorbunovia malmgreni ... [details]
Type locality
Lough Hyne, County Cork, Ireland, amongst Laurencia platycephala, Codium fragile algae [details]
