WoRMS source details

Sigvaldadóttir, E.; Mackie, A.S.Y. (1993). Prionospio steenstrupi, P. fallax and P. dubia (Polychaeta, Spionidae): re-evaluation of identity and status. Sarsia. 78(3-4): 203-219.
10.1080/00364827.1993.10413535 [view]
Sigvaldadóttir, E.; Mackie, A.S.Y.
<i>Prionospio steenstrupi</i>, <i>P. fallax</i> and <i>P. dubia</i> (Polychaeta, Spionidae): re-evaluation of identity and status.
78(3-4): 203-219
World Polychaeta Database (WPolyDb)
Within the genus Prionospio Malmgren, 1867, the ‘steenstrupi-group’ (including the type species P. steenstrupi Malmgren, 1867) is characterised by the possession of four pairs of branchiae, of which the first and fourth pairs are pinnate. Unfortunately the identities of P. steenstrupi and the other northeastern Atlantic species (P. fallax Söderström, 1920 and P. dubia Maciolek, 1985) have been much confused. All have been variously misinterpreted or synonymised in the literature. An examination of type, topotypic and other European material indicates that all three species are valid and readily distinguished. Each species is described and figured in detail, and their geographical distributions reassessed. The usefulness of the characters employed to distinguish these and other species is discussed. It is recommended that assessments of intraspecific variability be included in all species descriptions.
North Atlantic
Systematics, Taxonomy
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2013-01-12 18:30:12Z
2016-05-29 12:39:25Z

Lectotype NHRM 3170, geounit Iceland, identified as Prionospio steenstrupi Malmgren, 1867
Paralectotype NHRM 3170, geounit Iceland, identified as Prionospio steenstrupi Malmgren, 1867

 Depth range

73-205 m. [details]


Northeast Atlantic Ocean: northern, western and eastern Iceland. Sigvaldadóttir & Mackie (1993: 207) could only ... [details]


Clay, at shelf depths. [details]


Prionospio fallax Söderström, 1920 was considered to be a junior synonym of Prionospio malmgreni Claparède, 1869 ... [details]


Prionospio malmgreni Claparède, 1869, described from the Gulf of Naples (Mediterranean Sea), was considered to be ... [details]

 Type locality

Near Hofsås (= Hofsós), Skagafjördur, Iceland, North Atlantic Ocean (about 65º53'N, 19º27'W), 40 fathoms (= 73 ... [details]