Perkinsiana Knight-Jones 1983
Description
Genus Perkinsiana Knight-Jones, 1983
Remarks. The genus Perkinsiana was established by Knight-Jones (1983), in order to accommodate species previously assigned to the genera Demonax Kinberg, 1867 (= Parasabella fide Tovar-Hernández & Harris 2010), Potamilla Malmgren, 1866, and Potamethus Chamberlin, 1919. Fitzhugh (1989) provided a diagnosis slightly modified from that of Knight-Jones (1983) and indicated the genus was not united by any recognized synapomorphies, Capa (2007) amended the genus and, based on a cladistic analysis, she concluded that Perkinsiana is paraphyletic. Tovar-Hernández et al. (2012) amended the generic diagnosis of Perkinsiana, to include the presence of a palmate membrane and radiolar flanges, and three patterns of abdominal notochaetae: type A) chaetae with a broad hood, progressively tapering to distal tips in all chaetigers; type B) with a broad knee, distal ends narrowing abruptly on all chaetigers; and type C) elongate, with a narrow hood.
In this study, Perkinsiana antarctica (Kinberg, 1867) and Perkinsiana assimilis (McIntosh, 1885) are redescribed and reported for several localities off Uruguay, Argentina and Chile. Sabella magalhaensis Kinberg, 1867 is transferred to Perkinsiana, and P. littoralis Hartman, 1967 is synonymized to it. Perkinsiana antarctica was found in intertidal zones; P. assimilis, from 90–500 m depth, and P. magalhaensis, from 3–20 m depth. Six species of Perkinsiana from South America are currently valid (Table 2).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Sabellidae
- Genus
- Perkinsiana
- Kingdom
- Animalia
- Order
- Sabellida
- Phylum
- Annelida
- Scientific name authorship
- Knight-Jones
- Taxon rank
- genus
- Taxonomic concept label
- Perkinsiana Knight-Jones, 1983 sec. Tovar-Hernández, León-González & Bybee, 2017
References
- Knight-Jones, P. (1983) Contributions to the taxonomy of Sabellidae (Polychaeta). Zoological Journal of the Linnean Society, 79, 245 - 295.
- Kinberg, J. G. H. (1867) Annulata nova. Ofversigt af Koniglich Vetenskaps-Akademiens Forhandlingar, 23, 337 - 357.
- Tovar-Hernandez, M. A. & Harris L. H. (2010) Parasabella Bush, 1905, replacement name for the polychaete genus Demonax Kinberg, 1867 (Annelida: Polychaeta: Sabellidae). Zookeys, 60, 13 - 19.
- Malmgren, A. J. (1866) Nordiska Hafs-Annulater. Ofversigt af Koniglich Vetenskapsakademiens forhandlingar, 22, 355 - 410.
- Chamberlin, R. V. (1919) The Annelida Polychaeta [Albatross Expeditions]. Memoirs of the Museum of Comparative Zoology at Harvard College, 48, 1 - 514.
- Fitzhugh, K. (1989) A systematic revision of the Sabellidae-Caobangiidae-Sabellongidae complex (Annelida: Polychaeta). Bulletin of the American Museum of Natural History, 192, 1 - 104.
- Capa, M. (2007) Taxonomic revision and phylogenetic relationships of apomorphic sabellids (Sabellidae: Polychaeta) from Australia. Invertebrate Systematics, 21, 537 - 567.
- Tovar-Hernandez, M. A., Yanez-Rivera, B., Giangrande, A. & Gambi, M. C. (2012) Notes of the species of Perkinsiana (Polychaeta: Sabellidae) from Antarctica with the description of P. brigittae sp. nov. Zootaxa, 3485, 56 - 68.
- McIntosh, W. C. (1885) Report on the Annelida Polychaeta collected by H. M. S. Challenger during the years 1873 - 76, Part 34. Report of the scientific results of the voyage of H. M. S. Challenger London, Zoology, 12, 1 - 554.
- Hartman, O. (1967) Polychaetous annelids collected by the USNS Eltanin and Staten Islands Cruises, chiefly from Antarctic seas. Allan Hancock Monographs in Marine Biology, 2, 1 - 387.