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Paraonidae (Polychaeta) from western Mexico, with description of two new species

Published online by Cambridge University Press:  13 March 2006

Jesús Angel de León-González ,
Norma Angélica Hernández Guevara  and
José Alejandro Rodríguez-Valencia
Jesús Angel de León-González
Affiliation:
Laboratorio de Biosistemática, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Apartado de Correos Postal 5, Suc. ‘F’, San Nicolás de los Garza, N.L. 66451 México
Norma Angélica Hernández Guevara
Affiliation:
Alfred-Wegener-Institute Foundation for Polar and Marine Research, Wadden Sea Station Sylt, Hafenstrasse 43, D-25992 List/Sylt, Germany
José Alejandro Rodríguez-Valencia
Affiliation:
Alfred-Wegener-Institute Foundation for Polar and Marine Research, Wadden Sea Station Sylt, Hafenstrasse 43, D-25992 List/Sylt, Germany
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Abstract

In the present study 23 species of paraonids from western Mexico collected from the intertidal zone to the continental shelf of Baja California Sur, Guaymas, Sonora, and Petacalco, Guerrero are reported. Eight of these species are first recorded from the Mexican coast: Aricidea (Acmira) assimilis, Aricidea (Acmira) catherinae, Aricidea (Allia) ramosa, Aricidea (Aricidea) longicirrata, Aricidea (Aricidea) minima, and Levinseniaoligobranchiata; Aricidea (Aricidea) minuta and Cirrophorusarmatus are cited for first time from the Pacific. Two new species are described. Aricidea (Aricidea) petacalcoensis sp. nov. has bifurcate antenna on prostomium without nuchal grooves, tapering branchiae in chaetigers 4–13, modified neuropodial chaetae from chaetiger 21. Cirrophorus magdalenaensis sp. nov. has prostomium without antennae, eyes or nuchal grooves, banchiae from chaetiger 5, having ten pairs, notopodial modified chaetae bayonet-shaped.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 86 , Issue 2 , April 2006 , pp. 253 - 262
Copyright
2006 Marine Biological Association of the United Kingdom

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