Abstract
A study of the structure of the limbs of Bosminopsis deitersi Richard, 1895 was performed. Thestructure is similar in populations from differentregions. According to Meissner (1903), limbs of Bosminopsis differ from those of Bosminastrongly enough to separate Bosminopsis in aspecial family. However, our observations indicatethat the structure of the limbs of Bosmina andBosminopsis is similar, and conform to thegeneral plan of Bosminid limbs. The first limb isstrongly simplified, and the first limb of males isunique among anomopods. Limbs III–V are lessoligomerized than limbs I–II, and are organizedaccording to the chydorid (and macrothricid) type. Thedegree of oligomerization is different in the twogenera. Comparative information on the limb structurein one genus may contribute to the reconstruction ofthe evolution of a corresponding limb in the othergenus. The uniformity of limb structure within eachgenus, and their similarity between both genera isthought to be a reflection of the monotonous lifeconditions in open water.
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Kotov, A.A. Structure of thoracic limbs in Bosminopsis deitersi Richard, 1895 (Anomopoda, Branchiopoda). Hydrobiologia 360, 25–32 (1997). https://doi.org/10.1023/A:1003100701891
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DOI: https://doi.org/10.1023/A:1003100701891