A new species of the genus Leptochela (Decapoda, Caridea, Pasiphaeidae) from the Yellow Sea

in Crustaceana
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Based on samples collected from the Yellow Sea in October 2014, a new species of pasiphaeid shrimp, Leptochela (Leptochela) tuerkayi sp. nov., is described. The new species is closely related to L. (L.) gracilis Stimpson, 1860 in morphology but differs from the latter and other congeners by the following combination of characters: three longitudinal dorsal carinae in ovigerous females, third maxilliped with the rather short exopod slightly overreaching the distal margin of the antepenultimate segment and the fourth pereiopod with the exopod reaching beyond the end of the merus. Morphological data and a partial sequence of the 16S rRNA gene of the new species are provided to show its systematic position.

A new species of the genus Leptochela (Decapoda, Caridea, Pasiphaeidae) from the Yellow Sea

in Crustaceana



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    Leptochela (Leptochela) tuerkayi sp. nov. a, Holotype, MBM189216, lateral view. b-f, paratype, MBM189214: b, dorsal view of eyes; c, left antennal scale; d, dorsal view of left antennula; e, lateral view left antennula; f, lateral view of carapace. Scale = 0.05 mm.

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    Leptochela (Leptochela) tuerkayi sp. nov., paratype, MBM189214. a, Mandible; b, third maxilliped; c, left first pereiopod; d, left second pereiopod; e, outer view of right fourth pereiopod; f, inner view of right fourth pereiopod; g, maxillula; h, second maxilliped; i, first maxilliped; j, maxilla. Scale: a-f = 0.05 mm, g-j = 0.5 mm.

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    Leptochela (Leptochela) tuerkayi sp. nov. a, Paratype, MBM189214, telson and uropods; b, paratype, MBM189215, right first pleopod and second pleopod with appendix masculina and appendix interna. Scale = 0.05 mm.

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    Phylogenetic tree obtained by maximum likelihood analysis of DNA sequences based on 16S rRNA gene; bootstrap values >50% are shown.

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