Ref ID : 6939
J.M. Schmid-Araya; New records of rare Bdelloidea and Monogononta Rotifers in gravel streams. Arch.Hydrobiol. 135(1):129-143, 1995
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Rare rotifer species have been newly found in two different gravel streams (Oberer Seebach, Austria; and Afon Mynach, North Wales, Great Britain). The taxonomy and habitat distribution is revised, and confirmed for: Philodinavus paradoxus (Murray), Henoceros falcatus (Milne), Microcodides chlaena (Gosse), Proalinopsis caudatus (Collins), Dicranophorus difflugiarum (Penard), Wigrella depressa Wiszniewski and Myersinella tetraglena (Wiszniewski). H. falcatus is the first European record outside Great Britain, and it was found for the first time seventy-eight years after it was described. Similarly, W. depressa and M. tetraglena were found after fifty-eight years. The presence of Rotifera in the hyporheos, and video observations of their feeding behaviour are also discussed.