Not Ancient But Neotenic: Neotenactis amateras gen. et sp. nov., the First Record of a Gonactiniid Anemone from the North Pacific (Cnidaria: Anthozoa: Enthemonae).
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引用次数: 0
Abstract
The metridioid enthemonaean sea-anemone family Gonactiniidae Carlgren, 1893 is characterized by having one of the simplest morphologies among the Actiniaria. It currently includes two monotypic genera, each consisting of a species described in the 19th century from the Atlantic, although additional specimens have also been reported from the Mediterranean and South Pacific. In this study, we discovered a new species of gonactiniid anemone from Kumano-Nada, off the Pacific coast of Japan. This is the first record of this family from the North Pacific. According to our phylogenetic analyses, this anemone is the sister group to the other two genera of Gonactiniidae, Gonactinia Sars, 1851 and Protanthea Carlgren, 1891. Accordingly, we establish a new genus for this new species. Additionally, we discuss the simplification of body form in this lineage of sea anemones based on the discovery of this new species, which exhibits an intermediate morphology between the other gonactiniids and non-gonactiniid actiniarians.
期刊介绍：
Zoological Science is published by the Zoological Society of Japan and devoted to publication of original articles, reviews and editorials that cover the broad field of zoology. The journal was founded in 1984 as a result of the consolidation of Zoological Magazine (1888–1983) and Annotationes Zoologicae Japonenses (1897–1983), the former official journals of the Zoological Society of Japan. Each annual volume consists of six regular issues, one every two months.
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