Abstract

Abstract Delavalia qingdaoensis, a new species of harpacticoid copepod of the family Miraciidae is described based on specimens sorted from sediment samples collected in Jiaozhou Bay, Qingdao, Shandong Peninsula, Yellow Sea, in May 2008. The new species is easily distinguished from its congeners by the combined characters of the antennulary segments, an apomorphic setal formula of the swimming legs, and the shape of P5 in both sexes. It is remarkably similar to D. bocqueti (Soyer, 1971) and D. latioperculata (Itô, 1981), but it differs from D. bocqueti by features of the caudal rami, antennule, antennary endopod, mandibular exopod, maxillipedal basis, and P5 endopodal lobe; from D. latioperculata by the caudal rami, the inner setae of P1-P4 enp-1, P2 enp-2, and P4 exp-3, and the shape of P5 in both sexes.

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