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Description of Elisesione imajimai sp. nov. from Japan (Annelida: Hesionidae) and A redescription of E. problematica (Wesenberg-Lund, 1950) and its confirmation within Hesionini

Por: Jimi, Naoto [autor].
Eibye Jacobsen, Danny [autor] | Salazar Vallejo, Sergio I [autor].
Tipo de material: Artículo
 en línea Artículo en línea Tipo de contenido: Texto Tipo de medio: Computadora Tipo de portador: Recurso en líneaTema(s): Elisesione imajimai | Elisesione problematica | Polychaeta | Filogenética | Morfología animalTema(s) en inglés: Elisesione imajimai | Elisesione problematica | Polychaeta | Phylogenetics | Animal morphologyDescriptor(es) geográficos: Bahía Sagami (Japón) Nota de acceso: Acceso en línea sin restricciones En: Zoological Studies. Volumen 57, número 5 (February 2018), páginas 1-9. --ISSN: 1810-522XNúmero de sistema: 58797Resumen:
Inglés

Elisesione imajimai sp. nov. is newly described based on specimens collected in Sagami Bay, Japan, at a depth of 150-250 m. This new species resembles E. problematica (Wesenberg-Lund, 1950) from Iceland, but differs because in E. imajimai sp. nov. the ventral cirri surpass the tips of the neurochaetal lobes, reaching to the medial part of the neurochaetal bundle; the palps are 1/2-4/5 as long as the antennae; the aciculae are pale brownish; and the dorsal integument shows 9-10 transverse wrinkles per segment, whereas in E. problematica the ventral cirri hardly reach the tips of the neurochaetal lobes; the palps are as long as the antennae; the aciculae are black; and there are 15 transverse wrinkles per segment. A morphological redescription of E. problematica based on its type material and a revised key to identify species in the genus are also provided. A phylogenetic analysis based upon four genes (COI, 16S, 18S, 28S) confirms its position within Hesionini.

Recurso en línea: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6517717/
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Acceso en línea sin restricciones

Elisesione imajimai sp. nov. is newly described based on specimens collected in Sagami Bay, Japan, at a depth of 150-250 m. This new species resembles E. problematica (Wesenberg-Lund, 1950) from Iceland, but differs because in E. imajimai sp. nov. the ventral cirri surpass the tips of the neurochaetal lobes, reaching to the medial part of the neurochaetal bundle; the palps are 1/2-4/5 as long as the antennae; the aciculae are pale brownish; and the dorsal integument shows 9-10 transverse wrinkles per segment, whereas in E. problematica the ventral cirri hardly reach the tips of the neurochaetal lobes; the palps are as long as the antennae; the aciculae are black; and there are 15 transverse wrinkles per segment. A morphological redescription of E. problematica based on its type material and a revised key to identify species in the genus are also provided. A phylogenetic analysis based upon four genes (COI, 16S, 18S, 28S) confirms its position within Hesionini. eng

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