British records of the interstitial polychaete Stygocapitella subterranea (Annelida: Parergodrilidae)

Worsfold, Tim M.

doi:10.1017/s1755267206004295

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…After the first description of S. subterranea from the German Baltic Sea [25], this species has also been found at numerous additional beaches in Europe including the North, Baltic, Mediterranean, and Black Sea and the European Atlantic coast (Figure 1D) [24,30,44,50,53,55,[58][59][60][61][62][63][64][65][66][67]. It has also been found at several beaches outside Europe, in specific North America, Australia, New Zealand and Japan (Figure 1A-C) [30,52,54,56,57,68].…”

Section: Distributionmentioning

confidence: 99%

The Early Branching Group of Orbiniida Sensu Struck et al., 2015: Parergodrilidae and Orbiniidae

2021

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This review addresses the state of the art of the systematics and the improvements in the biology, ecology and species diversity of the two annelid taxa Parergodrilidae and Orbiniidae, the early branching group of Orbiniida sensu Struck et al., 2015 according to molecular studies. An effort to identify gaps of knowledge is given to understand the distribution, dispersal and the diversity Parergodrilidae and Orbiniidae hold, as well as to give several directions for future research. Parergodrilidae is a taxon of interstitial annelids constituted by the terrestrial Parergodrilus heideri (monotypic genus up to date), reported throughout Europe but also in Korea and North America, and the genus Stygocapitella, which includes eleven species from the upper shore of sandy beaches distributed along Europe and other regions of the world. Orbiniidae contains more than 200 described species spread over 20 valid genera, varying in size from a few millimeters up to 30 cm, distributed globally and living in a wide variety of soft bottoms. Improving the knowledge on these two sister-taxa is crucial for the understanding of the evolution to interstitial forms by progenesis in Annelida.

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Section: Distributionmentioning

confidence: 99%

The Early Branching Group of Orbiniida Sensu Struck et al., 2015: Parergodrilidae and Orbiniidae

2021

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“…Strictly under this definition, from the eight Stygocapitella species herein described (and the undescribed species), only seven could be considered cryptic species. These seven represent populations/sites which have been considered to be S. subterranea before in the literature (Karling, 1958;Knöllner, 1934;Purschke, 2006Purschke, , 1999Purschke, , 1987Purschke, , 1986Purschke et al, 2019;Purschke and Fursman, 2005;Purschke and Jördens, 2007;Riser, 1980;Schmidt and Westheide, 2000;Schmidt, 1972aSchmidt, , 1970Schmidt, , 1969Struck et al, 2017;Westheide, 2008Westheide, , 1966Worsfold, 2008). The two only exceptions would be S. pacifica sp.…”

Section: Cryptic Species: Taxonomic Artefacts or Evolutionary Phenomena?mentioning

confidence: 99%

“…Stygocapitella zecai sp. nov. Stygocapitella subterranea partim (Purschke, 2006(Purschke, , 1999Purschke et al, 2019;Schmidt, 1972bSchmidt, , 1970Schmidt, , 1969Struck et al, 2017;Westheide, 2008;Worsfold, 2008) 6). The body comprises a prostomium without appendages, a peristomium bearing the mouth opening, 13 segments and a round pygidium.…”

Section: Stygocapitella Berniei Sp Novmentioning

confidence: 99%

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Delimitation of cryptic species drastically reduces the geographical ranges of marine interstitial ghost-worms (Stygocapitella; Annelida, Sedentaria)

Cerca

Meyer

Purschke

et al. 2020

Molecular Phylogenetics and Evolution

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The recognition of cryptic species concealed in traditionally established species may reveal new biogeographical patterns and alter the understanding of how biodiversity is geographically distributed. This is particularly relevant for marine ecosystems where the incidence of cryptic species is high and where species distribution data are often challenging to collect and interpret. Here, we studied specimens of the 'cosmopolitan' interstitial meiofaunal annelid Stygocapitella subterranea Knöllner, 1934 (Parergodrilidae, Orbiniida), obtaining data from four coastlines in the Northern hemisphere. Using phylogenetic tools and several species-delimitation methods (haplotype networks, GMYC, bPTP, maximum likelihood, posterior probability and morphology) we describe eight new Stygocapitella species. With one exception, all species are present along a single coastline, ultimately challenging the idea that Stygocapitella subterranea has a cosmopolitan distribution. We found evidence for several oceanic transitions having occurred in the past as well as a recent translocation, potentially due to human activity. No diagnostic characters were found, and qualitative and quantitative morphological data do not allow an unequivocal differentiation of the identified cryptic species. This suggests that (i) neither traditional diagnostic features nor quantitative morphology suffice to recognise species boundaries in cryptic species complexes, such as the Stygocapitella species complex; and that (ii) the recognition and description of cryptic species is of seminal importance for biodiversity assessments, biogeography and evolutionary biology.

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Phylogeny of basal descendants of cocoon-forming annelids (Clitellata)

Christoffersen¹

2012

Turkish Journal of Zoology

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British records of the interstitial polychaete Stygocapitella subterranea (Annelida: Parergodrilidae)

Cited by 3 publications

References 7 publications

The Early Branching Group of Orbiniida Sensu Struck et al., 2015: Parergodrilidae and Orbiniidae

The Early Branching Group of Orbiniida Sensu Struck et al., 2015: Parergodrilidae and Orbiniidae

Delimitation of cryptic species drastically reduces the geographical ranges of marine interstitial ghost-worms (Stygocapitella; Annelida, Sedentaria)

Phylogeny of basal descendants of cocoon-forming annelids (Clitellata)

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