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On Cryptocoeloma haswelli Rathbun, 1923 (Decapoda, Brachyura, Pilumnidae): taxonomy and first record from Hong Kong and Taiwan

In: Crustaceana
Authors:
Peter K. L. Ng Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Republic of Singapore

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https://orcid.org/0000-0002-3247-9293
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Kingsley J. H. Wong Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei 106, Taiwan
Biodiversity Research Center, Academia Sinica, Taipei 115, Taiwan

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https://orcid.org/0000-0001-9712-8585
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Chandler Tsz To Tsang Simon F. S. Li Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China

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Ling Ming Tsang Simon F. S. Li Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China

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Abstract

The poorly known pilumnid crab Cryptocoeloma haswelli Rathbun, 1923, is redescribed and figured at length on the basis of fresh specimens from Hong Kong and Taiwan, both of which constitute new local records. The male is redescribed and figured as the only previous account of it had been based on a gynandromorph. The species is also compared in detail with Heteropilumnus fimbriatus (H. Milne Edwards, 1834) with which it has been previously confused.

Résumé

Le crabe Pilumnidae peu connu Cryptocoeloma haswelli Rathbun, 1923, est redécrit et figuré en détail à partir de spécimens frais provenant de Hong Kong et Taiwan, ces deux localisations constituant de nouvelles données. Le mâle est redécrit et figuré car la seule description connue avait été faite à partir d’un individu gynandromorphe. L’espèce est aussi comparée en détail avec Heteropilumnus fimbriatus (H. Milne Edwards, 1834) avec laquelle elle avait été précédemment confondue.

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