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A revision of Notophyllum Orsted, 1843 (Phyllodocidae, Polychaeta)

Journal article
Authors T. Kato
Fredrik Pleijel
Published in Journal of Natural History
Volume 36
Issue 10
Pages 1135-1178
ISSN 0022-2933
Publication year 2002
Published at Department of Marine Ecology, Tjärnö Marine Biological Laboratory
Department of Marine Ecology
Pages 1135-1178
Language en
Links <Go to ISI>://000175950800001
Keywords cladistics, notophyllym, notophyllum imajimai sp n., phyllodocidae, polychaeta, phylogeny, revision, taxonomy, phylogeny, annelida
Subject categories Biological Sciences, Ecology

Abstract

Notophyllum Orsted, 1843 (Phyllodocidae, Polychaeta) is revised based on all available types and a large number of newly collected specimens. Redescriptions are provided of the seven species considered valid: N. americanum Verrill, 1885, N. foliosum (Sars, 1835), N. imbricatum Moore, 1906, N. japonicum Marenzeller, 1879, N. multicirris (Grube, 1878), N. sagamianum Izuka, 1912 and N. splendens (Schmarda, 1861). Notophyllum imajimai sp. n. is described from Japan. Some previously unreported characters are introduced, including a series of proboscis characters, morphology of dorsal cirri and cirrophores, and first appearance of notoaciculae in non-cephalized segments. A parsimony analysis of these taxa is presented based on 20 morphological characters and indicates two well-supported clades: Notophyllum as traditionally delineated and (N. foliosum, N. americanum (N. imajimai sp. n., N. imbricatum)). Characters for distinguishing all species of Notophyllum are provided in a table. Previous identifications of Notophyllum species have relied on the number of nuchal lobes; it is demonstrated that extensive intraspecific variation and interspecific overlap complicate the use of this character. Notophyllum caecum Fauvel, 1913 is referred to as Notophyllinae incertae sedis, and N. tectum (Chamberlin, 1919) comb. n. and N. laciniatum Willey, 1905 are referred to as Notophyllum incertae sedis. Taxa removed from Notophyllum include Phyllodoce benedenii (Hansen, 1882) comb. n. and Sige antarctica (Hartman, 1978) comb. n.

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Utskriftsdatum: 2020-08-07