New Records of Eucrangonyx gracilis S. I. Smith and Gammarus tigrinus Sexton


DURING a survey of the River Avon from Rugby to Stratford-on-Avon and of its tributary the River Sowe, new records of the amphipods Eucrangonyx gracilis and Gammarus tigrinus were made. The survey, which took place in August 1944, was made on behalf of the Water Pollution Research Laboratory of the Department of Scientific and Industrial Research, and the results are published by permission of the Department. General faunistic collections were made at stations several miles apart on the Avon, from Bretford Bridge to Stratford, and on the Sowe from Foleshill to its confluence with the Avon. Amphipods were absent from the Sowe except at Sowe Bridge, where a flourishing population of Gammarus tigrinus was present. In the very small tributary, the Smite, which joins the Sowe at this point, two G. pulex only were taken.

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  1. 1

    Nature, 139, 327 (1937).

  2. 2

    Synopses of Brit. Fauna No. 3. Gammaridæ (Linn. Soc. Lond., 1944).

  3. 3

    J. Mar. Biol. Assoc, 23, 543 (1939).

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BASSINDALE, R. New Records of Eucrangonyx gracilis S. I. Smith and Gammarus tigrinus Sexton. Nature 157, 485 (1946) doi:10.1038/157485b0

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