Discovery of a new species of Paronesimoides (Crustacea: Amphipoda: Tryphosidae) from a cold seep of Mariana Trench

We describe a new tryphosid amphipod, Paronesimoides calceolus sp. nov., from the Shinkai Seep Field, Mariana Trench, at a depth of 5689-5683 m. This is the first species of Paronesimoides to be described in the Mariana Trench and the deepest record of the genus. Paronesimoides calceolus sp. nov. di...

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Bibliographic Details
Published in:Journal of natural history 2022-02, Vol.56 (5-8), p.463-474
Main Authors: Tomikawa, Ko, Watanabe, Hiromi Kayama, Tanaka, Katsuhiko, Ohara, Yasuhiko
Format: Article
Language:English
Subjects:
Antennae
Congeners
deep sea
hadal zone
New species
Paronesimoides calceolus
Shinkai Seep Field
systematics
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Description
Summary:We describe a new tryphosid amphipod, Paronesimoides calceolus sp. nov., from the Shinkai Seep Field, Mariana Trench, at a depth of 5689-5683 m. This is the first species of Paronesimoides to be described in the Mariana Trench and the deepest record of the genus. Paronesimoides calceolus sp. nov. differs from its congeners in characteristics of its head, antennae, mandible, coxae, gnathopods and telson. A key to the Paronesimoides species is provided. http://www.zoobank.org/urn:lsid:zoobank.org:pub:87787DD8-FEEB-43C1-AEAA-40C37B021768
ISSN:0022-2933
1464-5262
DOI:10.1080/00222933.2022.2074906