Ďuriš Z and Horká I (2017), Towards a revision of the genus Periclimenes: r...

ECB-ART-49993

Zookeys 2017 Jan 17;646:25-44. doi: 10.3897/zookeys.646.11397.

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Towards a revision of the genus Periclimenes: resurrection of Ancylocaris Schenkel, 1902, and designation of three new genera (Crustacea, Decapoda, Palaemonidae).

Ďuriš Z , Horká I .

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Based on recently published molecular phylogenies of Indo-West Pacific palaemonid shrimps and further morphological evidence, the systematic position of several species of the polyphyletic genus Periclimenes is revised. The generic name Ancylocaris Schenkel, 1902 is re-established for the anemone-associated Periclimenes brevicarpalis. Actinimenesgen. n., is proposed for the anemone-associated Periclimenes inornatus, Periclimenes ornatellus and Periclimenes ornatus, all of which have a subspatulate first pereiopod. Cristimenesgen. n., is designated for the echinoderm-associated species, Periclimenes commensalis, Periclimenes cristimanus, and Periclimenes zanzibaricus, all with a unique carpo-propodal articulation of the second pereiopods. Rapimenesgen. n. is established for the hydroid and antipatharian-associated Periclimenes brucei, Periclimenes granulimanus, and Periclimenes laevimanus, for which the long, slender and unequal second pereiopods and prehensile ambulatory propodi are the main synapomorphic characters.

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References [+] :

Eilbracht, Periclimenes macrorhynchia sp. nov., a new hydrozoan-associated pontoniine shrimp (Crustacea, Decapoda, Palaemonidae) from North East Kalimantan, Indonesia. 2015, Pubmed

	Figure 1. Holotype of Palaemonella amboinensis Zehntner, 1894, adult female, MHNG (photo: L Monod; scale bar 5 mm).
	Figure 2. Second pereiopod of species of the genus Cristimanus gen. n. showing specific carpo-propodal articulation. A, B Cristimenes commensalis (Borradaile, 1915), comb. n., MTQ 33230, Lizard Island, Great Barrier Reef C, D Cristimenes cristimanus (Bruce, 1965), comb. n., UO 103-Vn08, Nhatrang Bay, Vietnam. (A, C medial aspect; B, D lateral aspect; scale bars 1 mm).
	Figure 3. Examples of species from the genera reported in this study. A, B Ancylocaris brevicarpalis Schenkel, 1902: ovigerous females, MNHN-2014-558 and -156 (resp.), Kavieng, Papua New Guinea C Actinimenes inornatus (Kemp, 1922), comb. n., MNHN-IU-2014-315, with bopyrid parasite, Kavieng, Papua New Guinea D Actinimenes ornatus (Bruce, 1969), comb. n., ovigerous female, UO 80-Vn08, Nhatrang Bay, Vietnam E Cristimenes cristimanus (Bruce, 1965), comb. n., UO 103-Vn08, Nhatrang Bay, Vietnam F Cristimenes commensalis (Borradaile, 1915), comb. n., MTQ 33230, Lizard Island, Great Barrier Ree G Rapimenes laevimanus (Ďuriš, 2010), comb. n., ovigerous female holotype, RMNH D.53129, Nhatrang Bay, Vietnam H Rapimenes granulimanus (Bruce, 1978), comb. n., ovigerous female, MNHN-IU-2013-509, Madang, Papua New Guinea. (Photos: A–G Z Ďuriš; H A Anker).