Revamping Amphinomidae (Annelida: Amphinomida), with the inclusion of Notopygos |
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| Authors: | Elizabeth Borda Beatriz Yáñez‐Rivera Gabriela M Ochoa Jerry D Kudenov Carlos Sanchez‐Ortiz Anja Schulze Greg W Rouse |
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| Institution: | 1. Marine Biology Department, Texas A&M University at Galveston, Galveston, TX, USA;2. Posgrado en Ciencias del Mar y Limnología, UNAM, Unidad Académica Mazatlán, Mazatlán, Sinaloa, México;3. Biological Sciences, University of Alaska Anchorage, Anchorage, AK, USA;4. Biología Marina, Universidad Autónoma de Baja California Sur, La Paz, Baja California Sur, México;5. MBRD, Scripps Institution of Oceanography, La Jolla, CA, USA |
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| Abstract: | This study revises the taxonomic status of the formerly monotypic Archinomidae, which is nested within paraphyletic Amphinomidae according to recent phylogenetic work. We focused our taxonomic sampling to evaluate the affinities of Notopygos and genera classified as ‘fusiform’ in body shape, including Archinome and Chloeia. Prior to this study, the phylogenetic placement of Notopygos had not been evaluated. We inferred the phylogenetic relationships of Notopygos within Amphinomidae based on nuclear and mitochondrial markers, and cytochrome c oxidase subunit I genetic divergences of five Notopygos species, including the newly described Notopygos kekooa sp. n. from the Gulf of California. The phylogenetic and morphological evidence, now including Notopygos species, justified the establishment of two subfamilies within Amphinomidae. In accordance with ICZN Article 36 (Principle of Coordination), both subfamilies are presented as status novus in the nomenclature ranks. |
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