Letter | Published:

Distribution of British Freshwater Amphipoda

Naturevolume 168page435 (1951) | Download Citation



CONTRIBUTIONS by Hynes1, Spooner2 and Reid3 have recently appeared in Nature on this subject. In referring to the spread of Eucrangonyx gracilis (S. I. Smith) Spooner states: “It is clear that the canal system has provided this species with an easy means of dispersal. It would be interesting, by a systematic examination of canals, to ascertain the northward limits of its range”. It is therefore worthy of placing on record that I found E. gracilis in the Huddersfield–Ashton canal at Golcar near Hudders-field (Yorkshire) in July of the present year, this being apparently the most northerly record of this species in Britain to date. In one stretch of the canal it was the only amphipod found after considerable search and was present in some numbers. In an adjoining stretch it was found in company with Gammarus pulex (L.) and was considerably outnumbered by this species. Preliminary search of the canal at Marsden, some three miles to the south-west, revealed its presence there, so it is probably distributed throughout that section of the canal which lies to the east of the Pennines.

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  1. 1

    Hynes, H. B. N., Nature, 167, 152 (1951).

  2. 2

    Spooner, G. M., Nature, 167, 530 (1951).

  3. 3

    Reid, D. M., Nature, 168, 126 (1951).

  4. 4

    Cain, A. J., and Cushing, D. H., Nature, 161, 483 (1948).

  5. 5

    Reid, D. M., Nature, 161, 609 (1948).

  6. 6

    Fryer, G., Naturalist, No. 835, 148 (1950).

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  1. Department of Biology, Technical College, Huddersfield

    • G. FRYER


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