Results 121 to 130 of about 498 (145)
Heterolepidoderma caudosquamatum (Gastrotricha: Chaetonotida), a new species from brackish waters of Denmark [PDF]
Zootaxa, 2009 A new species of Gastrotricha Chaetonotida was found in Denmark: it is the first gastrotrich finding from Danish brackish waters. The diagnostic scales at the dorsal posterior end account for the proposed name Heterolepidoderma caudosquamatum. The morphological affinity of the new species with marine species of the genus supports its marine origin.
Paolo Grilli +2 more
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A redescription of Chaetonotus (Primochaetus) veronicae Kånneby, 2013 (Gastrotricha: Chaetonotidae)
Zootaxa, 2015Gastrotricha are microscopic metazoan animals common to both freshwater and marine environments. A re-examination of Chaetonotus (Primochaetus) veronicae Kånneby, 2013, described from northern Sweden, revealed an important diagnostic character (bifurcated spines) that had been overlooked in the original description (Kånneby 2013).
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Hemoglobin-containing cells of Neodasys (gastrotricha, chaetonotida)—II. Respiratory significance
Comparative Biochemistry and Physiology Part A: Physiology, 1984Abstract 1. 1. The properties of the intracellular hemoglobin of Neodasys sp. are described and the utility of the hemoglobin in oxygen transport and storage is considered. 2. 2. The hemoglobin is located in immobile cells which occupy 14% of the total body volume. Heme concentration in these cells was 18.5 mM and the oxygen p50 (in vivo) was
James M. Colacino, David Kraus
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Journal of Morphology, 2007 AbstractThe taxon Neodasys has a basal position within Gastrotricha. This makes it very interesting for phylogenetic considerations in this group. To complete the reconstruction of the nephridial system in the stem species of Gastrotricha started earlier, we have studied the whole protonephridial system of Neodasys chaetonotoideus by means of complete ...
Alexander Kieneke +2 more
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Marine Biology, 1996 Many meiofaunal species are reported to be cosmopolitan, but due to uncertainties of identification, the affiliation of specimens from geographically distant areas to the same species-taxon is problematic. In this study, we examined morphological and molecular variation in samples of Xenotrichula intermedia Remane (Gastrotricha: Chaetonotida) from the ...
M. Antonio Todaro +4 more
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Un cas d'école : l'espèce type du genre Heterolepidoderma Remane (Gastrotriches, Chaetonotidae)
Bulletin mensuel de la Société linnéenne de Lyon, 2010L'année de description et de publication de la diagnose du genre Heterolepidoderma Remane (Gastrotriches, Chaetonotidae) étant controversée, les auteurs se sont livrés à une analyse critique des différentes publications dans lesquelles ce taxon a été utilisé au début, afin de déterminer la référence à prendre en compte comme étant celle de la ...
d'Hondt, Jean-Loup +2 more
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New species and records of freshwater Chaetonotus (Gastrotricha: Chaetonotidae) from Sweden
Zootaxa, 2013Chaetonotus is the most speciose genus of the family Chaetonotidae within Gastrotricha, a small phylum of aquatic acoelomate invertebrates. The freshwater gastrotrich fauna of Sweden has been studied during the last five years and so far 44 species have been reported in the literature from the country. This study describes the new species, Chaetonotus (
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Baltic Sea Gastrotricha—one new species and one new record of Chaetonotida from Poland
Zootaxa, 2015 Gastrotricha is a cosmopolitan phylum of aquatic and semi–aquatic invertebrates that comprise about 820 described species, which are divided into two orders: Chaetonotida Remane, 1925 [Rao & Clausen, 1970] and Macrodasyida Remane, 1925 [Rao & Clausen, 1970].
Małgorzata Kolicka +2 more
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Journal of the Marine Biological Association of the United Kingdom, 2009
During a survey of the marine meiobenthos in a predominantly muddy area, 40 km south of Venice (northern Adriatic Sea, Italy), 11 species of gastrotrichs were recorded. Gastrotrichs were found in 11 out of the 16 investigated stations, with densities (mean ± standard deviation) ranging from 0.6 ± 0.5 to 97.7 ± 71.2 ind./10 cm2.
Leasi F., TODARO, Mary Antonio Donatello
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During a survey of the marine meiobenthos in a predominantly muddy area, 40 km south of Venice (northern Adriatic Sea, Italy), 11 species of gastrotrichs were recorded. Gastrotrichs were found in 11 out of the 16 investigated stations, with densities (mean ± standard deviation) ranging from 0.6 ± 0.5 to 97.7 ± 71.2 ind./10 cm2.
Leasi F., TODARO, Mary Antonio Donatello
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American Midland Naturalist, 1974
Demographic life history data are used as a means of assessing effects of increasing concentrations of DDT on the longevity and reproductive rate of Lepidodermella squammata, a common aquatic micrometazoan, These obligate parthenogens were cultured individually in slide depressions, each juvenile being transferred to its own depression upon hatching ...
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Demographic life history data are used as a means of assessing effects of increasing concentrations of DDT on the longevity and reproductive rate of Lepidodermella squammata, a common aquatic micrometazoan, These obligate parthenogens were cultured individually in slide depressions, each juvenile being transferred to its own depression upon hatching ...
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