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Polychaeta taxon detailsPerkinsiana Knight-Jones, 1983
129542 (urn:lsid:marinespecies.org:taxname:129542)
accepted
Genus
Sabella (Potamilla) rubra Langerhans, 1880 accepted as Perkinsiana rubra (Langerhans, 1880) (type by original designation)
marine,
recent only
feminine
Knight-Jones, Phyllis. (1983). Contributions to the taxonomy of Sabellidae (Polychaeta. <em>Zoological Journal of the Linnean Society, London.</em> 79: 245-295., available online at https://academic.oup.com/zoolinnean/article-abstract/79/3/245/2661635
page(s): 273 [details] Available for editors  [request]
Etymology Phyllis Knight-Jones does not state an etymology, but the genus would be named after her sometime collaborator Mr Thomas H....
Etymology Phyllis Knight-Jones does not state an etymology, but the genus would be named after her sometime collaborator Mr Thomas H. Perkins of the Florida Department of Natural Resources, who is mentioned in the acknowledgements. As Knight-Jones makes no attempt to modify her new combinations into Perkinsiana to masculine it must be presumed she regarded the suffix '-iana' as feminine. [details]
Read, G.; Fauchald, K. (Ed.) (2025). World Polychaeta Database. Perkinsiana Knight-Jones, 1983. Accessed at: https://www.marinespecies.org/polychaeta/aphia.php?p=taxdetails&id=129542 on 2025-05-09
Date action by
original description
Knight-Jones, Phyllis. (1983). Contributions to the taxonomy of Sabellidae (Polychaeta. <em>Zoological Journal of the Linnean Society, London.</em> 79: 245-295., available online at https://academic.oup.com/zoolinnean/article-abstract/79/3/245/2661635
page(s): 273 [details] Available for editors [request]taxonomy source Tovar-Hernández, María Ana; Yáñez-Rivera, Beatriz; Giangrande, Adriana; Gambi, Maria Cristina. (2012). Notes on the species of Perkinsiana (Polychaeta: Sabellidae) from Antarctica with the description of P. brigittae sp. nov. <em>Zootaxa.</em> 3485(1): 56-68., available online at https://www.mapress.com/zt/article/view/zootaxa.3485.1.4 [details] Available for editors [request]additional source Bellan, G. (2001). Polychaeta, <i>in</i>: Costello, M.J. <i>et al.</i> (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Collection Patrimoines Naturels.</em> 50: 214-231. (look up in IMIS) note: checklist listing only [details] redescription Capa, M. 2007. Taxonomic revision and phylogenetic relationships of apomorphic sabellids (Polychaeta) from Australia. Invertebrate Systematics 21(5): 537-567 page(s): 549 [details] From editor or global species database
Diagnosis Original diagnosis of Knight-Jones (1983): Radioles (1) without eyes but (2) with indistinct ridges along the outer surface of each rachis, (3) without appendages (other than pinnules), (4) without flanges or (5) webbing, though the radioles are (6) fused for a short distance basally; the axial skeleton of each radiole (7) appears in a cross-section near the base as a rounded group of cells; these axial supports arise from the cartilaginous base of the crown which forms two semicircles, one each side separated ventrally and connected mediodorsally, (8) without flanges or notches along the dorsal margins; (9) the dorsal lips are paired, tapered and grooved, each being supported by a radiolar midrib, (10) with its outer lamella fused to the adjacent pinnule which is often enlarged; (11) the first segment is up to twice the length of the adjacent one; (12) the ventral sacs are small and adjoin (13) a ventral cleft between the lobes of the collar; (14) the collar is in two parts each extending from the cleft to the dorsal side, (15) without lateral notches or (16) dorsal lappets; (1 7) dorsally there is a wide gap between collar margins; (18) the collar chaetae are arranged in oblique oval tufts and (19) the superior chaetae of the thorax in sublongitudinal arcs; (20) both superior and collar chaetae are slender with narrow borders; (21) the inferior chaetae are arranged in transverse rows close to (and within) the arc of the superior chaetae; (22) each inferior chaeta is slightly curved distally, with tapered wings forming a hood and with a shaft about 5 times the length of the hood: (23) each avicular thoracic uncinus (see subfamily diagnosis) with a shaft similar to, or up to 3 times as long as the distance between its breast and its crest; (24) each companion chaeta with a flat tapered blade at right-angles to, and covering the oval distal part of the shaft that is slightly hooked in side view (Fig. 12H, K & L); (25) abdominal chaetigers more numerous than those of the thorax; (26) superior and inferior abdominal chaetae similar in shape, and either slender or with a bulbous knee (27) and arranged in two close short transverse rows; (28) the abdominal uncini avicular with a shaft similar in length to the distance between breast and crest; (29) the glandular areas are obvious as ventral shields; (30) there is no glandular girdle around the second chaetiger Subsequent diagnoses have modified the original. Tovar-Hernández Et al. (2012) explain that: "the genus Perkinsiana while distinguishable on character combinations was based on absences rather than synapomorphy, requires a full examination of the 18 species currently known in the genus in order to study the variation of abdominal chaetae either broadly-hooded, elongate, narrowly-hooded or, elongate broadly-hooded; the length of handles in thoracic uncini; and the presence or absence of radiolar flanges and palmate membrane. These characters have potential application in the phylogeny and such variation could result in splitting the genus." [details] Etymology Phyllis Knight-Jones does not state an etymology, but the genus would be named after her sometime collaborator Mr Thomas H. Perkins of the Florida Department of Natural Resources, who is mentioned in the acknowledgements. As Knight-Jones makes no attempt to modify her new combinations into Perkinsiana to masculine it must be presumed she regarded the suffix '-iana' as feminine. [details] Grammatical gender Perkinsiana is feminine. Knight-Jones doesn't state the gender and doesn't create a new species in Perkinsiana but she retains feminine endings for her adjectival name recombinations (eg 'antarctica' and 'ceylonica' and 'rubra' and 'acuminata'). Elsewhere -iana suffix geographic, and personal names are common and seem to be treated as feminine both as species-group names and genus names. For example genera Beringiana and Humboldtiana are feminine genera despite being named after men. [details] |
