Letter | Published:

Habits of the Marine Tardigrade, Echiniscoides sigismundi

Naturevolume 166pages153154 (1950) | Download Citation



IT would appear that, although tardigrades are often common, in many situations in fresh waters, they are comparatively rare, or at least have escaped frequent observation, in the sea. This is particularly true of British waters, for which only two records can, be traced. Both of them refer to the same species, Echiniscoides sigismundi (Schultze). The first record is that of Murray1 from the west coast of Ireland, and the second is that of Cole2 in 1934 from North Wales. In both instances the creature was found among seaweeds. Yet it is quite clear both from Marcus3 and Cuénot4 that E. sigismundi is widely distributed in the Mediterranean, North Sea and, Caribbean Sea, and even off the coasts of China. It is difficult to account for its apparent absence from most British coasts except on the supposition that it has not so far attracted attention.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Murray, J., Proc. Irish Acad., 31, No. 37, 2 (1911).

  2. 2

    Cole, H. A. (private communication to G. E. Newell, 1950).

  3. 3

    Marcus, E., “Das Tierreich”, ed. Bronn, Lief. 66 (Berlin, 1936).

  4. 4

    Cuénot, L., “Traité de Zoologie”, ed. P. Grassé, Tome 6, 39 (Paris, 1949).

Download references

Author information


  1. Zoology Department, Queen Mary College, London, E.1

    • J. GREEN


  1. Search for J. GREEN in:

About this article

Publication history

Issue Date



Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.