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Parasitol Int ; 75: 102023, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31715266

RESUMO

Two new species of Pseudohaploporinae, Pseudohaploporus pusitestis sp. n. and Parahaploporus elegantus n. g., sp. n., are described from intestines of the Vietnamese mullet fish Moolgarda seheli and Osteomugil cunnesius, respectively. Pseudohaploporus pusitestis sp. n. differs from two known Pseudohaploporus species, P. vietnamensis and P. planiliza, by the absence of a diverticulate hermaphroditic duct and muscular sphincters at the proximal end of the hermaphroditic sac. Metrically, P. pusitestis sp. n. is close to P. vietnamensis and differs from this species and from P. planilizum by lower maximum sizes of most parameters. Parahaploporus elegantus n. g., sp. differs from representatives of Pseudohaploporus by the presence of a single testis and the armament of hermaphroditic duct and is morphologically close to trematodes of the genus Haploporus. However, P. elegantus n. g differs from all known Haploporus species from mugilids of the Indo-West Pacific by the structure of the armament of the hermaphroditic duct and also by size of body, organs and eggs. The validity of designating two new species and a new genus of trematodes is supported by ITS and 28S rDNA sequence data. Phylogenetic reconstructions showed that the new trematodes belong to the Pseudohaploporinae, which formed a well-supported cluster within the monophyletic Haploporidae.


Assuntos
Doenças dos Peixes/parasitologia , Smegmamorpha , Trematódeos/classificação , Infecções por Trematódeos/veterinária , Animais , DNA de Helmintos/análise , DNA Espaçador Ribossômico/análise , RNA Ribossômico 28S/análise , Trematódeos/anatomia & histologia , Trematódeos/genética , Infecções por Trematódeos/parasitologia , Vietnã
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