Search results for "Palaeacanthocephala"

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Breizacanthus aznari sp. n. (Acanthocephala: Arhythmacanthidae) from the banded cusk-eel Raneya brasiliensis (Ophidiiformes: Ophidiidae) from the Pat…

2012

Breizacanthus aznari sp. n. is described from the banded cusk-eel Raneya brasiliensis (Kaup) (Ophidiiformes: Ophidiidae) from the Patagonian coast in Argentina. Breizacanthus Golvan, 1969 is currently composed of five species (including the new species) and is characterised by the absence of trunk spines, a short cylindrical proboscis with two types of hooks and lemnisci longer than the proboscis receptacle. Breizacanthus aznari is clearly distinguished from B. chabaudi Golvan, 1969 by having 12 longitudinal rows of hooks on the proboscis, instead of 16-18. The new species resembles B. golvani Gaevskaya et Shukhgalter, 1984, B. irenae Golvan, 1969, and B. ligur Paggi, Orecchia et Della Seta…

MaleArhythmacanthidaePalaeacanthocephalaOtras Ciencias BiológicasArgentinaPalaeacanthocephalaOphidiiformesEuzetacanthusMarine fishAcanthocephalaCiencias Biológicas//purl.org/becyt/ford/1 [https]Fish DiseasesPatagoniaAnimalsSouthwestern Atlantic//purl.org/becyt/ford/1.6 [https]Atlantic OceanSouthern HemisphereTaxonomybiologyRaneya brasiliensisFishesSetaAnatomybiology.organism_classificationSpiny-headed wormsFemaleParasitologyTaxonomy (biology)Helminthiasis AnimalAcanthocephalaCIENCIAS NATURALES Y EXACTASFolia Parasitologica
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Phylogenetic analyses of endoparasitic Acanthocephala based on mitochondrial genomes suggest secondary loss of sensory organs

2012

The metazoan taxon Syndermata (Monogononta, Bdelloidea, Seisonidea, Acanthocephala) comprises species with vastly different lifestyles. The focus of this study is on the phylogeny within the syndermatan subtaxon Acanthocephala (thorny-headed worms, obligate endoparasites). In order to investigate the controversially discussed phylogenetic relationships of acanthocephalan subtaxa we have sequenced the mitochondrial (mt) genomes of Echinorhynchus truttae (Palaeacanthocephala), Paratenuisentis ambiguus (Eoacanthocephala), Macracanthorhynchus hirudinaceus (Archiacanthocephala), and Philodina citrina (Bdelloidea). In doing so, we present the largest molecular phylogenetic dataset so far for this…

Likelihood FunctionsbiologySense OrgansPalaeacanthocephalaZoologyBayes TheoremSequence Analysis DNAArchiacanthocephalabiology.organism_classificationBiological EvolutionDNA MitochondrialAcanthocephalaMonophylySister groupPhylogeneticsGene OrderGenome MitochondrialGeneticsAnimalsBdelloideaEoacanthocephalaAcanthocephalaMolecular BiologyPhylogenyEcology Evolution Behavior and SystematicsMolecular Phylogenetics and Evolution
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