Pseudoscalibregma Ashworth 1901
Description
PseudoscalIbregma Ashworth, 1901
Pseudoscalibregma Ashworth, 1901: 296.
Type species: Scalibregma parvum Hansen, 1879
Diagnosis (emended). Body elongate, posterior part tapering (‘arenicoliform’). Prostomium T-shaped with distinct lateral processes. Posterior parapodia with dorsal and ventral cirri. Branchiae absent. Large acicular spines absent; small thin, pointed or bifurcate spines present in chaetiger 1.
Remarks. The diagnosis for the genus follows Blake (1981), with the exception of details concerning the presence of small spines in the first chaetiger as observed in the recently described species, P. orientalis from Japan (Imajima 2009) and in the type species P. parvum (present study, see below). The spines are similar to the thin spines in chaetigers 1–2 in species of Scalibregma that may be blunt or bifurcate. The spines are believed to be homologues of the furcate setae found in more posterior chaetigers (Mackie 1991).
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.11646/zootaxa.3753.2.1 (DOI)
- Journal article: http://zenodo.org/record/225662 (URL)
- Journal article: http://publication.plazi.org/id/672DFFDD524729513F59FF912F56914B (URL)
- Journal article: http://zoobank.org/42BA9ED6-75D6-42A2-9D1C-9BAD17B5E9C5 (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/9B1487A5524629503FCEFB362B61972F (URL)
Biodiversity
- Family
- Scalibregmatidae
- Genus
- Pseudoscalibregma
- Kingdom
- Animalia
- Phylum
- Annelida
- Scientific name authorship
- Ashworth
- Taxon rank
- genus
- Taxonomic concept label
- Pseudoscalibregma Ashworth, 1901 sec. Bakken, Oug & Kongsrud, 2014
References
- Ashworth, J. H. (1901) The anatomy of Scalibregma inflatum Rathke. Quarterly Journal of Microscopical Science, London, 45, 237 - 309.
- Hansen, G. A. (1879) Annelider fra den norske Nordhavsexpedition i 1876. Nyt Magazin for Naturvidenskaberne, 24, 1 - 17.
- Blake, J. A. (1981) The Scalibregmatidae (Annelida: Polychaeta) from South America and Antarctica collected chiefly during the cruises of the R / V Anton Bruun, R / V Hero and USNS Eltanin. Proceedings of the Biological Society of Washington, 94, 1131 - 1162.
- Imajima, M. (2009) Deep-sea Benthic Polychaetes off Pacific Coast of the Northern Honshu, Japan. National Museum of Nature and Science Monographs, 39 - 192.
- Mackie, A. S. Y. (1991) Scalibregma celticum new species (Polychaeta, Scalibregmatidae) from Europe, with a redescription of Scalibregma inflatum Rathke, 1843 and comments on the genus Sclerobregma Hartman, 1965. Bulletin of Marine Science, 48, 268 - 276.