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|Title:||Systematics of the Indo-West Pacific Broad-Fronted Fiddler crabs (Crustacea: Ocypodidae: Genus Uca)||Authors:||Shih, H.-T.
Cytochrome oxidase I
|Issue Date:||Aug-2013||Citation:||Shih, H.-T.,Ng, P.K.L.,Liu, M.-Y. (2013-08). Systematics of the Indo-West Pacific Broad-Fronted Fiddler crabs (Crustacea: Ocypodidae: Genus Uca). Raffles Bulletin of Zoology 61 (2) : 641-649. ScholarBank@NUS Repository.||Abstract:||Fiddler crabs (genus Uca) with broad-fronts (BF) belong to a group of small-sized species with complex behaviors and have been suggested to be more "advanced" compared to the narrow-fronted species groups. Three Indo-West Pacific subgenera, Austruca Bott, 1973, Cranuca Beinlich & von Hagen, 2006, and Pa raleptuca Bott, 1973, are reappraised using two mitochondrial (16S rRNA and cytochrome oxidase I) and one nuclear (28S rRNA) markers. The phylogenetic analyses show that the three clades agree relatively well with the three subgenera as currently defined. Our study confirms that the Indo-West Pacific BF species that had been placed with the American Celuca sensu Crane, 1975, are genetically unsupported, and should be classified in Austruca, together with U. sindensis (Alcock, 1900) (currently in Paraleptuca). Austruca now contains 11 species. Cranuca, a subgenus established with only U. inversa (Hoffmann, 1874), is supported by its monophyly and its significant distance from other subgenera. In addition, Paraleptuca (= Amphiuca Crane, 1975) is restricted for U. chlorophthalmus (H. Milne Edwards, 1837), U. crassipes (White, 1847) and U. splendida (Stimpson, 1858). The two American BF subgenera, Minuca Bott, 1954 and Leptuca Bott, 1973, form a mixed clade and further studies will be needed to clarify their validities. © National University of Singapore.||Source Title:||Raffles Bulletin of Zoology||URI:||http://scholarbank.nus.edu.sg/handle/10635/101807||ISSN:||02172445|
|Appears in Collections:||Staff Publications|
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