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Polychaeta source details

Maciolek, Nancy J. 1990. A redescription of some species belonging to the genus Spio and Microspio (Polychaeta: Annelida) and descriptions of three new species from Northwestern Atlantic Ocean. Journal of Natural History, 24: 1109-1141.
10.1080/00222939000770701 [view]
Maciolekancy, N. J.
A redescription of some species belonging to the genus <i>Spio</i> and <i>Microspio</i> (Polychaeta: Annelida) and descriptions of three new species from Northwestern Atlantic Ocean
Journal of Natural History
24: 1109-1141
Kristian Fauchald's Polychaeta DB
A partial revision of the spionid polychaete genera Spio and Microspio is presented. The genus Spio is defined as having branchiae from setiger 1 and the genus Microspio from setiger 2. Of 74 species originally described in, or transferred to, these genera, 25 species of Spio and 15 species of Microspio are accepted as valid, based on the examination of type specimens of 18 species, description of three new species, and the recognition or general acceptance of other species by published systematists. Detailed descriptions are given for S. filicornis Müller, S. setosa Verrill, S. limicola Verrill, S. pettiboneae Foster, M. pigmentata (Reish), and M. microcera (Dorsey). Three new species are described: S. thulini from Georges Bank, and M. profunda and M. tetrabranchia from deep water. A new name, S. blakei, is proposed for S. pacifica Blake and Kudenov because the species name is preoccupied by S. martinensis pacifica Berkeley. Based on the examination of type specimens, the following revisions are made: M. maculata (Hartman) and M. theeli Söderström are transferred to the genus Spio; S. punctata Hartman is transferred to the genus Malacoceros; Holmquist's synonymy of S. arctica (Söderström) with S. limicola Verrill is confirmed; S. martinensis pacifica Berkeley is synonymized with S. filicornis; and S. armata (Thulin) and M. gracilis (Hartmann-Schröder) are considered incertae sedis.
North-western Atlantic
Systematics, Taxonomy
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2013-01-12 18:30:12Z
2014-04-23 00:12:43Z

Malacoceros punctatus (Hartman, 1961) accepted as Malacoceros indicus (Fauvel, 1928) (new combination reference)
Microspio africana Rullier, 1964 accepted as Dispio africana (Rullier, 1964) (new combination reference)
Microspio armata Thulin, 1957 accepted as Spio armata (Thulin, 1957) (status source)
Microspio gracilis (Hartmann-Schröder, 1962) (status source)
Microspio microcera (Dorsey, 1977) (redescription)
Microspio pigmentata (Reish, 1959) (redescription)
Microspio profunda Maciolek, 1990 (original description)
Microspio tetrabranchia Maciolek, 1990 (original description)
Nerine cirratulus hirsuta (Treadwell, 1928) accepted as Scolelepis (Scolelepis) squamata (O.F. Muller, 1806) (status source)
Paraspio Czerniavsky, 1881 accepted as Spio Fabricius, 1785 (status source)
Spio africana (Rullier, 1964) accepted as Dispio africana (Rullier, 1964) (new combination reference)
Spio armata (Thulin, 1957) (status source)
Spio blakei Maciolek, 1990 (original description)
Spio cirrifera (Banse & Hobson, 1968) (new combination reference)
Spio crenaticornis Montagu, 1816 (status source)
Spio hirsuta Treadwell, 1928 accepted as Scolelepis (Scolelepis) squamata (O.F. Muller, 1806) (status source)
Spio limicola Verrill, 1879 (redescription)
Spio maculata (Hartman, 1961) (status source)
Spio mesnili Augener, 1914 (status source)
Spio mimus Chamberlin, 1920 accepted as Spio theeli (Söderström, 1920) (additional source)
Spio pacifica Blake & Kudenov, 1978 accepted as Spio blakei Maciolek, 1990 (source of synonymy)
Spio theeli kolaensis (Zachs, 1925) (status source)
Spio thulini Maciolek, 1990 (original description)
Spiophanes pigmentata Reish, 1959 accepted as Microspio pigmentata (Reish, 1959) (status source)


Foster (1971) used Microspio downgraded to a subgenus of Spio. However, mostly it is treated as a full genus in ... [details]


The dense and obvious glandulation of the branchial and podal lobes and the deeply incised protomium are striking ... [details]


Prostomium with frontal horns, branchiae from chaetiger 2, notochaetae capillaries only, pygidium with cirri or ... [details]


Also recorded from North Carolina coast in the Atlantic. Maciolek (1990) did not speculate in her report how the ... [details]

 Editor's comment

Rhynchospio species described to date are all from the intertidal or very shallow water. This genus does not occur ... [details]

 Editor's comment

The range of reported habitats and distribution for Spio blakei is remarkable as it apparently occurs from brackish ... [details]


Spio pacifica is a replaced junior primary homonym to Spio martinensis pacifica Berkeley, 1927, and was renamed ... [details]


Spio blakei is a replacement name for Spio pacifica Blake & Kudenov, which is a junior homonym [details]


Maciolek (1990: 1111) placed the holotype as incertae sedis. She wrote that: "The holotype is very small, and has ... [details]


The holotype is an incertae sedis juvenile form (Maciolek, 1990). Originally there were also 3 paratypes. [details]


Valid fide Maciolek (1990) [details]


Foster (1971) is one source for treatment of Paraspio as synonym of Spio. Day (1973: 76) also states (in text ... [details]

 Taxonomic Remark

The species was transferred from Microspio to Dispio by Intes & Le Loeuff (1977: 220-221, fig. 1a-i), with base on ... [details]


Blake & Kudenov (1978:199 footnote) referred R. microcera Dorsey to genus Microspio. Maciolek (1990:1131) ... [details]


Current taxon junior synonym of species listed. Frank et al. (1985: 40) resumed the systematic history of the ... [details]


Status uncertain. We have not ascertained whether the original taxon has been recorded since the original ... [details]