Results 271 to 280 of about 41,410 (309)
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Serpulidés (Annelida, Sedentarida)
Nouvelles archives du Muséum d'histoire naturelle de Lyon, 1984Philippe Michel, Prieur A. Serpulidés (Annelida, Sedentarida). In: Nouvelles archives du Muséum d'histoire naturelle de Lyon, tome 22, 1984. pp. 71-73.
Philippe, Michel, Prieur, Abel
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Expression of vasa, piwi, and nanos during gametogenesis in Typosyllis antoni (Annelida, Syllidae)
Evolution & Development, 2018Although model species have proven to be crucial for developmental biology, the evo‐devo approach requires a broader picture across phylogeny. Herein, we try to expand the range of studied annelids by presenting a transcriptome of Typosyllis antoni as a ...
Guillermo Ponz-Segrelles +2 more
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Zootaxa, 2018
The glossiphoniid freshwater leech, Helobdella stagnalis, was described by Linnaeus 1758 based on common European specimens. The presence of a brown, chitinous scute on the dorsal-anterior surface, as observed on leeches elsewhere in the world, has ...
N. Sağlam +5 more
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The glossiphoniid freshwater leech, Helobdella stagnalis, was described by Linnaeus 1758 based on common European specimens. The presence of a brown, chitinous scute on the dorsal-anterior surface, as observed on leeches elsewhere in the world, has ...
N. Sağlam +5 more
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Stylet jaws of Chrysopetalidae (Annelida)
Journal of Natural History, 2017Micro-CT imaging elucidates jaw and pharynx structure in 14 nominal taxa belonging to Chrysopetalinae, Dysponetinae and Calamyzinae (Chrysopetalidae: Annelida).
Charlotte Watson, Sarah Faulwetter
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2021
The Annelida is a large phylum, with over than 22,000 species, including ragworms, earthworms, and leeches. They are adapted to various environments. Some species exist in and have adapted to marine environments, others in fresh water, and yet others in moist terrestrial environments. Freshwater Annelids are classified into the following subgroups:
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The Annelida is a large phylum, with over than 22,000 species, including ragworms, earthworms, and leeches. They are adapted to various environments. Some species exist in and have adapted to marine environments, others in fresh water, and yet others in moist terrestrial environments. Freshwater Annelids are classified into the following subgroups:
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Photoreceptor cells and eyes in Annelida
Arthropod Structure & Development, 2006The evolution of photoreceptor cells and eyes in Metazoa is far from being resolved, although recent developmental and morphological studies provided strong evidence for a common origin of photoreceptor cells and existence of sister cell types in early metazoans.
Günter Purschke +3 more
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2013
The phylum of segmented worms (Annelida) contains truly metameric animals. Their body consists of similar ‘rings’ that are alike not only concerning their appearance but also their inner structure. The epithelium of annelids composes a functional unit together with the muscle fibres beneath.
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The phylum of segmented worms (Annelida) contains truly metameric animals. Their body consists of similar ‘rings’ that are alike not only concerning their appearance but also their inner structure. The epithelium of annelids composes a functional unit together with the muscle fibres beneath.
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Molecular phylogeny of the Annelida
Canadian Journal of Zoology, 2000Traditionally, the Annelida has been classified as a group comprising the Polychaeta and the Clitellata. Recent phylogenetic analyses have led to profound changes in the view that the Annelida, as traditionally formulated, is a natural, monophyletic group.
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2008
Nella lista seguente sono elencate le specie di policheti segnalate in Italia; vengono riportate 876 specie appartenenti a 71 famiglie della classe Polychaeta. Rispetto alla precedente edizione della Checklist della fauna italiana (Castelli et al., 1995) si può osservare un incremento di oltre 50 specie, ampiamente superiore al 5% del totale delle ...
A. Castelli +11 more
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Nella lista seguente sono elencate le specie di policheti segnalate in Italia; vengono riportate 876 specie appartenenti a 71 famiglie della classe Polychaeta. Rispetto alla precedente edizione della Checklist della fauna italiana (Castelli et al., 1995) si può osservare un incremento di oltre 50 specie, ampiamente superiore al 5% del totale delle ...
A. Castelli +11 more
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Cryptic diversity in supposedly species-poor genera of Enchytraeidae (Annelida: Clitellata)
, 2018Using a two-step workflow, we test the species boundaries in three genera of enchytraeid worms, Globulidrilus, Hemifridericia and Stercutus (Clitellata: Enchytraeidae), which contains one to three nominal species each.
Svante Martinsson, C. Erséus
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