Garlitska L.A.1, Chertoprud E.S.2 2021. A new species of Danielssenia Boeck, 1873 (Copepoda: Harpacticoida: Pseudotachidiidae) from the Arctic shelf and redescription of Danielssenia similis Chislenko, 1978 // Arthropoda Selecta. Vol.30. No.3: 309–330 [in English].

1 P.P. Shirshov Institute of Oceanology RAS, Nakhimovsky prospekt, 36, Moscow 117997 Russia. E-mail: garlitska@gmail.com

2 M.V. Lomonosov Moscow State University, Leninskie Gory, 1/12, Moscow 119234 Russia.

doi: 10.15298/arthsel.30.3.05

ABSTRACT. A new species, Danielssenia spiridonovi sp.n., is described from the Kara and East Siberian Sea. It can be distinguished from the known congeners by the differences in the male’s seven-segmented antennule, comparatively larger copulatory pore and genital field pattern in females, and different setal formula. Danielssenia similis Chislenko, 1978 is redescribed based on the type material and a new material from the Sea of Okhotsk. The genus now contains six well defined species. A generic amended diagnosis is proposed to accommodate all the species of the genus, and a key to the species of Danielssenia is presented.

KEY WORDS: Copepoda, Harpacticoida, Pseudotachidiidae, Danielsseniinae, Danielssenia.

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