Heterolepidoderma caudosquamatum (Gastrotricha: Chaetonotida), a new species from brackish waters of Denmark

Grilli, Paolo; Kristensen, Reinhardt Møbjerg; Balsamo, Maria

doi:10.11646/zootaxa.2173.1.5

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…H. arenosum can be separated from the new species on the basis of possessing large ocellar granules and a longer furca and H. hermaphroditum on the basis of its clearly five-lobed head. H. caudosquamatum Grilli, Kristensen and Balsamo, 2009, a brackish species described from Denmark, has hydrofoil scales and a lower total number of scale columns. Of all the hitherto discussed species, H. joermungandri n. sp.…”

Section: (Figures 6 7)mentioning

confidence: 99%

New species and new records of freshwater Chaetonotida (Gastrotricha) from Sweden

Kånneby

2011

Zootaxa

View full text Add to dashboard Cite

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.

show abstract

Section: (Figures 6 7)mentioning

confidence: 99%

New species and new records of freshwater Chaetonotida (Gastrotricha) from Sweden

Kånneby

2011

Zootaxa

View full text Add to dashboard Cite

show abstract

A Heterolepidoderma and Halichaetoderma gen. nov. (Gastrotricha: Chaetonotidae) riddle: integrative taxonomy and phylogeny of six new freshwater species from Central Europe

Rataj Križanová,

Vďačný

2023

Zoological Journal of the Linnean Society

View full text Add to dashboard Cite

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.

show abstract

Checklist of Gastrotricha of the Polish Baltic Sea with the first reports of Heterolepidoderma joermungandri Kånneby, 2011, and Turbanella hyalina <br />Schultze, 1853

Kolicka

Kisielewski

Kotwicki

et al. 2014

Zootaxa

View full text Add to dashboard Cite

Gastrotricha is a cosmopolitan phylum of aquatic and semi-terrestrial invertebrates comprising more than 800 described species. Up to now, only five taxonomic and faunistic papers have been published on the gastrotrichs of the Polish Baltic Sea and 27 taxa have been found (including three freshwater, which were found in estuaries). This article presents a complete list of brackish and estuarine Gastrotricha from the Polish Baltic Sea accompanied by localities and the first observations of gastrotrich species inhabiting the underwater macrophytes. Although the group has been studied for more than 150 years, the gastrotrich community of marine macrophytes has not been studied in any great detail. Here we provide data on gastrotrich communities living on macrophytes and also in sandy sediments. In total, nine species were found (seven from sandy sediments, two species from macrophytes). Seven of the species belong to Chaetonotida: Halichaetonotus balticus Kisielewski, 1975, H. lamellatus Kisielewski, 1975, H. schromi Kisielewski, 1975, Heterolepidoderma joermungandri Kånneby, 2011, Lepidodermella squamata (Dujardin, 1841), Xenotrichula intermedia Remane, 1934, and X. velox Remane, 1927(c). Two of species belong to Macrodasyida: Turbanella cornuta Remane, 1925, and T. hyalina Schultze, 1853. H. joermungandri and T. hyalina are new for Polish fauna. Both species correspond with the original descriptions but differ by some morphometric characters. Taxonomic, morphometric, and biogeographic remarks are provided for the new records together with differential interference contrast (DIC) microphotographs.

show abstract

Heterolepidoderma caudosquamatum (Gastrotricha: Chaetonotida), a new species from brackish waters of Denmark

Cited by 3 publications

References 0 publications

New species and new records of freshwater Chaetonotida (Gastrotricha) from Sweden

New species and new records of freshwater Chaetonotida (Gastrotricha) from Sweden

A Heterolepidoderma and Halichaetoderma gen. nov. (Gastrotricha: Chaetonotidae) riddle: integrative taxonomy and phylogeny of six new freshwater species from Central Europe

Checklist of Gastrotricha of the Polish Baltic Sea with the first reports of Heterolepidoderma joermungandri Kånneby, 2011, and Turbanella hyalina <br />Schultze, 1853

Contact Info

Product

Resources

About