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A taxonomic review of the genus Astrocladus (Echinodermata, Ophiuroidea, Euryalida, Gorgonocephalidae) from Japanese coastal waters.

ABSTRACT: Japanese species of the genus Astrocladus (Echinodermata, Ophiuroidea, Euryalida, Gorgonocephalidae) are reviewed. Astrocladus coniferus recently has two junior synonyms, A. dofleini Döderlein and A. pardalis Döderlein, however, status of these species has long been questioned. These species concepts have not been reviewed in recent years and no molecular phylogenetic analyses have been performed. Observations of the lectotype of A. coniferus, as well as the lectotype and four paralectotypes of A. dofleini and the holotype of A. pardalis have revealed that A. coniferus and A. pardalis are conspecific and morphologically distinguishable from A. dofleini. Astrocladus coniferus and A. dofleini are supported as distinct species by our molecular data. Additionally, we re-describe A. exiguus and A. annulatus, based on recently collected specimens and the holotype. We conclude that four species, A. annulatus, A. coniferus, A. dofleini, and A. exiguus are present in Japanese waters.

SUBMITTER: Okanishi M 

PROVIDER: S-EPMC7547617 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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A taxonomic review of the genus <i>Astrocladus</i> (Echinodermata, Ophiuroidea, Euryalida, Gorgonocephalidae) from Japanese coastal waters.

Okanishi Masanori M   Kohtsuka Hisanori H   Fujita Toshihiko T  

PeerJ 20201007

Japanese species of the genus <i>Astrocladus</i> (Echinodermata, Ophiuroidea, Euryalida, Gorgonocephalidae) are reviewed. <i>Astrocladus coniferus</i> recently has two junior synonyms, <i>A. dofleini</i> Döderlein and <i>A. pardalis</i> Döderlein, however, status of these species has long been questioned. These species concepts have not been reviewed in recent years and no molecular phylogenetic analyses have been performed. Observations of the lectotype of <i>A. coniferus</i>, as well as the le  ...[more]

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