A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat

This is the first report of Decamastus Hartman, 1963 in the Tropical Eastern Pacific, since two previous records were misidentified. Based on individuals from the continental shelf of the Gulf of California, Decamastus okuilin sp. n. is described, illustrated, and compared with the other species of...

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Autores principales: Solís Weiss, Vivianne, García Garza, María Elena, Hernández Alcántara, Pablo
Formato: Artículo
Publicado: Springer 2019
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author Solís Weiss, Vivianne
García Garza, María Elena
Hernández Alcántara, Pablo
author_facet Solís Weiss, Vivianne
García Garza, María Elena
Hernández Alcántara, Pablo
author_sort Solís Weiss, Vivianne
collection Repositorio Institucional
description This is the first report of Decamastus Hartman, 1963 in the Tropical Eastern Pacific, since two previous records were misidentified. Based on individuals from the continental shelf of the Gulf of California, Decamastus okuilin sp. n. is described, illustrated, and compared with the other species of the genus. The new species can be distinguished by the presence of a palpode in the anterior end of the prostomium, the first chaetiger bearing only notopodia, abdominal hooded hooks with more than 20 small teeth arranged in at least four rows above the main fang, and a methyl green staining pattern characterized by a uniformly light green staining in chaetigers 7–10 and dark speckles encircling segments in chaetigers 11 and 12. Its habitat is characterized by variations in dissolved oxygen, depth (44 to 94 m), and sandy bottoms. The methyl green staining pattern of D. gracilis Hartman, 1963, the other species found in the Pacific, is also described and illustrated.
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spelling eprints-270842024-10-15T16:30:20Z http://eprints.uanl.mx/27084/ A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat Solís Weiss, Vivianne García Garza, María Elena Hernández Alcántara, Pablo QH Historia Natural, Biología This is the first report of Decamastus Hartman, 1963 in the Tropical Eastern Pacific, since two previous records were misidentified. Based on individuals from the continental shelf of the Gulf of California, Decamastus okuilin sp. n. is described, illustrated, and compared with the other species of the genus. The new species can be distinguished by the presence of a palpode in the anterior end of the prostomium, the first chaetiger bearing only notopodia, abdominal hooded hooks with more than 20 small teeth arranged in at least four rows above the main fang, and a methyl green staining pattern characterized by a uniformly light green staining in chaetigers 7–10 and dark speckles encircling segments in chaetigers 11 and 12. Its habitat is characterized by variations in dissolved oxygen, depth (44 to 94 m), and sandy bottoms. The methyl green staining pattern of D. gracilis Hartman, 1963, the other species found in the Pacific, is also described and illustrated. Springer 2019 Article PeerReviewed Solís Weiss, Vivianne y García Garza, María Elena y Hernández Alcántara, Pablo (2019) A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat. Marine Biodiversity, 49 (3). pp. 1123-1130. ISSN 18671616 http://doi.org/10.1007/s12526-018-0896-3 doi:10.1007/s12526-018-0896-3
spellingShingle QH Historia Natural, Biología
Solís Weiss, Vivianne
García Garza, María Elena
Hernández Alcántara, Pablo
A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat
thumbnail https://rediab.uanl.mx/themes/sandal5/images/online.png
title A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat
title_full A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat
title_fullStr A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat
title_full_unstemmed A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat
title_short A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat
title_sort new species of decamastus hartman 1963 polychaeta capitellidae from the gulf of california with remarks on its habitat
topic QH Historia Natural, Biología
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