Vista normal Vista MARC

Revision of Therochaeta Chamberlin, 1919 (Polychaeta: Flabelligeridae)

Tipo de material: ArtículoArtículoIdioma: Inglés Tema(s) en español: Tema(s) en inglés: Formatos físicos adicionales disponibles:
  • Disponible en línea
En: Zoosystema volumen 35, número 2 (2013), páginas 227-263Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso Resumen:
Inglés

The taxonomy of flabelligerid polychaetes has been mainly based on chaetal features; however, some confusion has occurred due to the lack of standardization of their shapes. Therochaeta Chamberlin, 1919 was proposed for Stykrioides collarifer Ehlers, 1887 because it has pseudoCompound neurohooks and a collar-shaped anterior shield made of cemented sediment particles. The shield is made of particles of varying size and extends along the first three-two chaetigers, usually covering them completely. There are some species described as closely allied to Therochaeta collarifera (Ehlers, 1887) but without pseudoCompound neurohooks and less developed anterior shields. The revision of all available material has allowed the recognition of two different body patterns, especially with regard to the type of neurochaetae present in some anterior chaetigers. As a result, Therochaeta is restricted and a new genus, Paratherochaeta n. gen., is herein proposed. Therochaeta includes four species besides the type species: Therochaeta caudata (Rioja, 1963) n. comb, and Therochaeta pacifica Fauchald, 1972 from the Eastern Pacific Ocean, Therochaeta fauchaldi n. sp. from the Gulf of Mexico, Therochaeta flabellata (Sars in Sars, 1872) from the Norwegian Sea, from the Eastern Pacific Ocean. Paratherochaeta n. gen., with Therochaeta antoni Kirkegaard, 1996 from the Bay of Bengal, Indian Ocean as the type species, includes seven other species: Paratherochaeta africana (Rullier, 1965) n. comb., n. stat., Paratherochaeta augeneri n. sp. and Paratherochaeta scutigeroides (Augener, 1918) n. comb, from Western Africa, Paratherochaeta coronata (Ehlers, 1908) n. comb, from the Western Indian Ocean, Paratherochaeta ehlersi n. sp. from the Southwestern Indian Ocean, Paratherochaeta orensanzi n. sp. from the Southwestern Atlantic Ocean, Paratherochaeta scutigera (Ehlers, 1887) n. comb, from the Grand Caribbean Sea.

Número de sistema: 37701
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
Valoración
    Valoración media: 0.0 (0 votos)
Existencias
Tipo de ítem Biblioteca actual Colección Estado Código de barras
Artículos Biblioteca Electrónica Recursos en línea (RE) ECOSUR Recurso digital ECO40037701900

Disponible para usuarios de ECOSUR con su clave de acceso

The taxonomy of flabelligerid polychaetes has been mainly based on chaetal features; however, some confusion has occurred due to the lack of standardization of their shapes. Therochaeta Chamberlin, 1919 was proposed for Stykrioides collarifer Ehlers, 1887 because it has pseudoCompound neurohooks and a collar-shaped anterior shield made of cemented sediment particles. The shield is made of particles of varying size and extends along the first three-two chaetigers, usually covering them completely. There are some species described as closely allied to Therochaeta collarifera (Ehlers, 1887) but without pseudoCompound neurohooks and less developed anterior shields. The revision of all available material has allowed the recognition of two different body patterns, especially with regard to the type of neurochaetae present in some anterior chaetigers. As a result, Therochaeta is restricted and a new genus, Paratherochaeta n. gen., is herein proposed. Therochaeta includes four species besides the type species: Therochaeta caudata (Rioja, 1963) n. comb, and Therochaeta pacifica Fauchald, 1972 from the Eastern Pacific Ocean, Therochaeta fauchaldi n. sp. from the Gulf of Mexico, Therochaeta flabellata (Sars in Sars, 1872) from the Norwegian Sea, from the Eastern Pacific Ocean. Paratherochaeta n. gen., with Therochaeta antoni Kirkegaard, 1996 from the Bay of Bengal, Indian Ocean as the type species, includes seven other species: Paratherochaeta africana (Rullier, 1965) n. comb., n. stat., Paratherochaeta augeneri n. sp. and Paratherochaeta scutigeroides (Augener, 1918) n. comb, from Western Africa, Paratherochaeta coronata (Ehlers, 1908) n. comb, from the Western Indian Ocean, Paratherochaeta ehlersi n. sp. from the Southwestern Indian Ocean, Paratherochaeta orensanzi n. sp. from the Southwestern Atlantic Ocean, Paratherochaeta scutigera (Ehlers, 1887) n. comb, from the Grand Caribbean Sea. Inglés

Révision du genre Therochaeta Chamberlin, 1919 (Polychaeta: Flabelligeridae). La taxonomie des polychètes flabelligeriens a été basée principalement sur les caractères des soies. Cependant, par manque de standardisation de leurs formes, quelques confusions persistent. Therochaeta Chamberlin, 1919 a été proposé pour Stykrioides collarifer Ehlers, 1887 parce qu'il a des neurochètes pseudocomposées et un bouclier antérieur col-façonné composé de particules sédimentaires cimentées. Le bouclier est fait de particules de dimensions variables et s'étend le long des premiers 2-3 sétigères, en les couvrant, le plus souvent, complètement. Il y a quelques espèces décrites qui ressemblent étroitement à Therochaeta collarifera (Ehlers, 1887) mais sans neurochètes pseudocomposées et qui présentent des boucliers antérieurs moins développés. La révision de tous les matériaux disponibles a permis la reconnaissance de deux modèles différent du corps, surtout concernant le type de neurochètes dans quelque sétigères antérieurs. Par conséquent, Therochaeta Chamberlin, 1919 est redéfini et un nouveau genre, Paratherochaeta n. gen., est proposée ici. Therochaeta Chamberlin, 1919 inclut quatre espèces exceptée l'espèce type : Therochaeta caudata (Rioja, 1963) n. comb, de l'Océan Pacifique de l'est, Therochaeta fauchaldi n. sp. du Golfe du Mexique, Therochaeta flabellata (Sars in Sars, 1872) de la Mer de Norvège, et Therochaeta pacifica Fauchald, 1972 de l'Océan Pacifique de l'est. Frances

Paratherochaeta n. gen., awec Therochaeta antoni Kirkegaard, 1996 du Golfe du Bengale, Océan Indien comme espèce type, inclut sept autres espèces : Paratherochaeta africana (Rullier, 1965) n. comb., n. stat. d'Afrique de l'ouest, Paratherochaeta augeneri n. sp. d'Afrique de l'ouest, Paratherochaeta coronata (Ehlers, 1908) n. comb, de l'Océan Indien de l'ouest, Paratherochaeta ehlersi n. sp. de l'Océan Indien sud-ouest, Paratherochaeta orensanzi n. sp. de l'Océan Atlantique sud-ouest, Paratherochaeta scutigera (Ehlers, 1887) n. comb, de la Grande Mer des Caraïbes, et Paratherochaeta scutigeroides (Augener, 1918) n. comb. d'Afrique de l'ouest. Frances

Disponible en línea

Adobe Acrobat profesional 6.0 o superior