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Issue: Vol. 5448 No. 2: 10 May 2024
Type: Article
Published: 2024-05-10
DOI: 10.11646/zootaxa.5448.2.7
Page range: 273-282
Abstract views: 5
PDF downloaded: 0

A new species of the genus Ovalona Van Damme & Dumont, 2008 (Cladocera: Anomopoda: Chydoridae) from South-East Asia, related to Australian Ovalona archeri (Sars, 1888)

Department of Invertebrate Zoology; Biological Faculty; M.V. Lomonosov Moscow State University; Leninskie Gory 1–12; Moscow 119991; Russia
A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences; Leninsky Prospect 33; Moscow 119071; Russia
Southern Branch of Joint Vietnam-Russian Tropical Science and Technology Research Center; No. 3; 3/2 Street; District 10; Ho Chi Minh City; Vietnam
Crustacea Aloninae taxonomy morphology endemic

Abstract

A new species of Ovalona Van Damme & Dumont, 2008 (Cladocera: Anomopoda) related to the rare Australian species Ovalona archeri (Sars, 1888), is described from the Mekong Delta, South Vietnam. Ovalona garibiani sp. nov. differs from O. archeri in morphology of antenna, postabdomen, and proportions of setae on thoracic limbs II–III. Both species differ from other species of the genus Ovalona in the postabdomen with a narrow and sparsely spaced group of lateral setulae, the distance between the postanal groups being slightly greater than the width of the group. O. garibiani sp. nov. is a rare phytophilous species, known from a few localities in continental Malaysia, Southern Thailand and Vietnam.

 

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