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Journal articles on the topic 'Dasydytidae'

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1

KIENEKE, ALEXANDER, and OLE RIEMANN. "First record of rare dasydytid gastrotrich Setopus tongiorgii (Balsamo, 1982) from central Europe with some biological data." Zootaxa 1680, no. 1 (2008): 59. http://dx.doi.org/10.11646/zootaxa.1680.1.4.

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Members of the freshwater family Dasydytidae belong to the rarest gastrotrichs although some species like Stylochaeta scirtetica may develop high population densities (Schwank 1990). The taxon Dasydytidae is characterised by several apomorphic features correlated to a semi-planktonic lifestyle. Species of Dasydytidae have, for example, completely lost their caudal adhesive tubes, they possess a system of ciliary bands in the head region with which they swim like ciliated larvae of annelids, and most species have motile spines to perform saltatory movements in the water column. So far, our knowledge on the biology, life cycle and their distribution is very limited. This is probably due to the rareness and difficult preparation and handling of Dasydytidae.
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2

Kieneke, Alexander, and Alexandra Ostmann. "Structure, function and evolution of somatic musculature in Dasydytidae (Paucitubulatina, Gastrotricha)." Zoomorphology 131, no. 2 (2012): 95–114. http://dx.doi.org/10.1007/s00435-012-0152-5.

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3

KÅNNEBY, TOBIAS. "New species and new records of freshwater Chaetonotida (Gastrotricha) from Sweden." Zootaxa 3115, no. 1 (2011): 29. http://dx.doi.org/10.11646/zootaxa.3115.1.3.

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Gastrotricha is a small phylum of acoelomatic aquatic invertebrates common in both marine and freshwater environments. The freshwater gastrotrich fauna of Sweden is poorly known and so far only 20 species have been reported. In this study two species, Heterolepidoderma joermungandri n. sp. and H. trapezoidum n. sp., are described as new to science. Moreover, 9 species are presented as new to the Swedish fauna. Additional taxonomic information is also given for 4 species previously reported from the country. In total 7 genera of two families, Chaetonotidae and Dasydytidae, are presented and the number of reported freshwater gastrotrichs from the country is increased to 31.
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4

BALSAMO, MARIA, JEAN-LOUP D’HONDT, LARA PIERBONI, and PAOLO GRILLI. "Taxonomic and nomenclatural notes on freshwater Gastrotricha." Zootaxa 2158, no. 1 (2009): 1–19. http://dx.doi.org/10.11646/zootaxa.2158.1.1.

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Some taxonomic and nomenclatural remarks concerning freshwater species of Gastrotricha Chaetonotida are presented. In the family Chaetonotidae, the subgenus Chaetonotus (Hystricochaetonotus) is synonimized with the subgenus C. (Chaetonotus sensu stricto). The genus Lepidochaetus is moved to a subgeneric rank into the genus Chaetonotus, and the subgenus Nudichaetonotus Schwank, 1990 is synonymized with C. (Lepidochaetus). Chaetonotus (Lepidochaetus) brasilianus is proposed as a replacement name for Chaetonotus brasilense Kisielewski, 1991, which has become a secondary junior homonym of Chaetonotus brasiliensis Schwank, 1990. Emended diagnoses of the genus Chaetonotus and of the subgenera C. (Chaetonotus sensu stricto), and Chaetonotus (Lepidochaetus) are given. The 3 subgenera of the genus Ichthydium introduced by Schwank (1990) have not been introduced in the present list. In the family Dasydytidae, the subgenus Dasydytes (Setodytes) is synonymized with the genus Setopus. Six new species by Schwank (1990) (Aspidiophorus ontarionensis, Chaetonotus (C.) furculatus, Chaetonotus (Zonochaeta) annae, Ichthydium malleum, Lepidodermella forficulata and Dasydytes (Setodytes) lemnicola) are nomina nuda. An updated list of the reliable world freshwater species of Gastrotricha is reported.
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5

Kieneke, Alexander, Pedro Martínez Arbizu, and Ole Riemann. "Body musculature of Stylochaeta scirtetica Brunson, 1950 and Dasydytes (Setodytes) tongiorgii (Balsamo, 1982) (Gastrotricha: Dasydytidae): A functional approach." Zoologischer Anzeiger - A Journal of Comparative Zoology 247, no. 2 (2008): 147–58. http://dx.doi.org/10.1016/j.jcz.2007.11.001.

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6

Minowa, Axell K., and André R. S. Garraffoni. "Redescription of the dasydytid gastrotrich Haltidytes ooëides (Brunson, 1950) based on type material." ZooKeys 785 (September 19, 2018): 41–48. https://doi.org/10.3897/zookeys.785.28382.

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The semi-pelagic gastrotrich species Haltidytes ooëides (Brunson, 1950) is redescribed based on original type material deposited at the Smithsonian National Museum of Natural History. Herein we present a new diagnosis and figures of the species, detailing the insertion position of the lateral spines, misinterpreted in the original description. Furthermore, we reassess the taxonomic key for the genus Haltidytes Remane, 1936 based on our new findings.
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7

Kånneby, Tobias. "New species and new records of freshwater Chaetonotida (Gastrotricha) from Sweden." Zootaxa 3115 (December 31, 2011): 29–55. https://doi.org/10.5281/zenodo.206874.

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8

Schwank, Peter, and Tobias Kånneby. "Contribution to the freshwater gastrotrich fauna of wetland areas of southwestern Ontario (Canada) with redescriptions of seven species and a check-list for North America." Zootaxa 3811, no. 4 (2014): 463–90. https://doi.org/10.11646/zootaxa.3811.4.3.

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Schwank, Peter, Kånneby, Tobias (2014): Contribution to the freshwater gastrotrich fauna of wetland areas of southwestern Ontario (Canada) with redescriptions of seven species and a check-list for North America. Zootaxa 3811 (4): 463-490, DOI: 10.11646/zootaxa.3811.4.3
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9

Minowa, Axell K., and André R. S. Garraffoni. "New data on Brazilian semiplanktonic gastrotrichs (Gastrotricha: Chaetonotida)." Zootaxa 5209, no. 1 (2022): 45–68. https://doi.org/10.11646/zootaxa.5209.1.3.

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10

Balsamo, Maria, Lara Pierboni, and Paolo Grilli. "Taxonomic and nomenclatural notes on freshwater Gastrotricha." Zootaxa 2158 (December 31, 2009): 1–19. https://doi.org/10.5281/zenodo.275059.

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11

Minowa, Axell K., and André R. S. Garraffoni. "A new species of Haltidytes Remane, 1936 (Gastrotricha: Chaetonotida: Dasydytidae) from an urban lagoon in Brazil with a phylogenetic reconstruction of the genus based on morphological data." Zoologischer Anzeiger 269 (July 2017): 100–109. http://dx.doi.org/10.1016/j.jcz.2017.08.003.

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12

Chatterjee, Tapas, and M. Antonio Todaro. "An annotated checklist of the chaetonotidan Gastrotricha from India." Zootaxa 5027, no. 3 (2021): 332–50. https://doi.org/10.11646/zootaxa.5027.3.2.

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13

Kieneke, Alexander, and Ole Riemann. "First record of rare dasydytid gastrotrich Setopus tongiorgii (Balsamo, 1982) from central Europe with some biological data." Zootaxa 1680, no. 1 (2008): 59–61. https://doi.org/10.11646/zootaxa.1680.1.4.

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Kieneke, Alexander, Riemann, Ole (2008): First record of rare dasydytid gastrotrich Setopus tongiorgii (Balsamo, 1982) from central Europe with some biological data. Zootaxa 1680 (1): 59-61, DOI: 10.11646/zootaxa.1680.1.4, URL: http://dx.doi.org/10.11646/zootaxa.1680.1.4
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14

Minowa, Axell K., and André R.S. Garraffoni. "Seek and you shall find: new species of the rare genus Ornamentula (Gastrotricha: Chaetonotida) and first record outside of type-locality." Zoologia 38 (February 26, 2021): 1–9. https://doi.org/10.3897/zoologia.38.e56781.

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Ornamentula Kisielewski, 1991 is a monospecific genus in Order Chaetonotida. The sole species, O. paraensis Kisielewsk, 1991, is a semiplanktonic gastrotrich found in a single pond in the Amazon region of Brazil. Herein we describe a new species of the genus Ornamentula, collected in a small urban lagoon in the Atlantic Forest of southeast Brazil. Ornamentula miyazakii sp. nov. resembles O. paraensis, but it shows differences in the ornamented trunk scales and spinal spines distribution, sufficient to proposte it as it's a new species.
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15

Minowa, Axell K., and André R. S. Garraffoni. "Redescription of the dasydytid gastrotrich Haltidytes ooëides (Brunson, 1950) based on type material." ZooKeys 785 (September 19, 2018): 41–48. http://dx.doi.org/10.3897/zookeys.785.28382.

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Abstract:
The semi-pelagic gastrotrich species Haltidytesooëides (Brunson, 1950) is redescribed based on original type material deposited at the Smithsonian National Museum of Natural History. Herein we present a new diagnosis and figures of the species, detailing the insertion position of the lateral spines, misinterpreted in the original description. Furthermore, we reassess the taxonomic key for the genus Haltidytes Remane, 1936 based on our new findings.
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16

Garraffoni, André Rinaldo Senna. "Checklist de Gastrotricha do Estado do Mato Grosso do Sul, Brasil." Iheringia. Série Zoologia 107, suppl (2017). http://dx.doi.org/10.1590/1678-4766e2017104.

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RESUMO Neste estudo é apresentada uma lista atualizada das espécies de Gastrotricha que ocorrem nos corpos de água do estado de Mato Grosso do Sul. A grande maioria das espécies de Gastrotricha pertence a Chaetonotidae (quatro gêneros, nove espécies), seguida por Dasydytidae (três gêneros, três espécies) e Neogosseidae (um gênero, uma espécie). Como apenas um estudo foi realizado até hoje no estado do Mato Grosso do Sul, é mais do que evidente que o conhecimento da biodiversidade dos Gastrotricha está totalmente subestimado neste estado.
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17

Rataj Križanová, Františka, and Peter Vďačný. "A Heterolepidoderma and Halichaetoderma gen. nov. (Gastrotricha: Chaetonotidae) riddle: integrative taxonomy and phylogeny of six new freshwater species from Central Europe." Zoological Journal of the Linnean Society, September 5, 2023. http://dx.doi.org/10.1093/zoolinnean/zlad079.

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Abstract Heterolepidoderma is a widely distributed gastrotrich genus encompassing 22 freshwater and 15 marine species. In the present study, two new Heterolepidoderma and four new Heterolepidoderma-like species were discovered in the inland waters of Central Europe. Although Heterolepidoderma-like species exhibited all the morphological features typical of Heterolepidoderma, both nuclear and mitochondrial genes robustly showed their sister-group relationship to the marine genus Halichaetonotus. Most Heterolepidoderma species, including the new ones, were grouped with some Chaetonotus and Ichthydium species in a strongly supported cluster (so-called Heterolepidoderma s.l. clade). Since statistical tree topology tests robustly refuted the close affinity of Heterolepidoderma-like species to the Heterolepidoderma s.l. clade, a new genus, Halichaetoderma gen. nov., was proposed for them. Stochastic mapping suggested that the last common ancestor (LCA) of the Chaetonotidae‒Neogosseidae‒Dasydytidae clade had scales carrying keels with spines. Scales became oblong in the LCA of the Halichaetoderma + Halichaetonotus clade and three times independently within the Heterolepidoderma s.l. clade. Spines were lost in the LCAs of the Halichaetoderma + Halichaetonotus and Heterolepidoderma s.l. clades convergently. State-by-state associations of cuticular characters suggested that particular scale morphologies tend to be correlated with particular numbers of keels and the presence/absence of spines during the chaetonotid phylogeny.
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