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Two new species of Diaphanosoma Fischer , 1850(Crustacea: Branchiopoda: Cladocera) from the United States
Author(s) -
Korovchinsky Nikolai M.
Publication year - 2005
Publication title -
international review of hydrobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 1434-2944
DOI - 10.1002/iroh.200410748
Subject(s) - seta , cladocera , branchiopoda , biology , crustacean , dorsum , zoology , genus , spine (molecular biology) , anatomy , ecology , microbiology and biotechnology
Two new species of the genus Diaphanosoma, D. oligosetum and D. dorotheae , from Louisiana and North Carolina respectively, are described. The former species has large head with protruding dorsal part, large lanceolate spine on the basipodite's distal outer end, an extremely reduced number of antennal setae, up to six in adult specimens, and unique armament of valve margin. On the whole, it shows the pronounced combination of primitive and specialized morphological traits. D. dorotheae is a member of D. brachyurum species group differing from its other known representatives in presence of a small but very conspicuous spine on the end of proximal segment of antennal exopodite and a variable number of setae (seven or eight) on the distal segment of the branch. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)