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Title: | A new marine interstitial Psammogammarus (Crustacea, Amphipoda, Melitidae) from Gura Ici Island, off western Halmahera (North Moluccas, Indonesia), and an overview of the genus |
Authors: | Vonk, Ronald; Hoeksema, Bert W.; Jaume, Damià CSIC ORCID | Keywords: | Shallow marine interstitial Sandy beaches Genus review Psammogammarus Sexual dimorphism |
Issue Date: | 9-Sep-2011 | Publisher: | Pensoft Publishers | Citation: | ZooKeys 128 : 53–73 (2011) | Abstract: | Psammogammarus wallacei sp. n. is described from the shallow marine interstitial of a sand and coral rubble beach on the Gura Ici islands (North Moluccas; Indonesia). This is the first record of this circum-tropical genus from SE Asia, with the geographically closest relative inhabiting the Ryukyu archipelago in Japan. The new species is highly distinctive by the display of sexual dimorphism on pleopod II, with the medial margin of the male proximal article of exopod provided with a comb of short, blunt curved spinules; no other representative of the genus is known to display sexually-dimorphic appendages aside of the gnathopods. The new species is also noteworthy by the outline of the palm margin of male gnathopod II, hardly excavated, and by showing a carpus broader than long. An overview of the genus Psammogammarus with 14 species to date is provided. | Description: | 21 páginas, 8 figuras, 1 tabla. | Publisher version (URL): | http://dx.doi.org/10.3897/zookeys.128.1661 | URI: | http://hdl.handle.net/10261/46788 | DOI: | 10.3897/zookeys.128.1661 | ISSN: | 1313-2989 | E-ISSN: | 1313-2970 |
Appears in Collections: | (IMEDEA) Artículos |
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1661-G-3-layout.pdf | 3,07 MB | Adobe PDF | View/Open |
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