NEMATODES FROM SKIPPERS ISLAND
207
None of the species found in the non-brackish soil sample was found
in any of the others, which suggests that they are intolerant of any
appreciable salinity. On the other hand, all the nematodes found in the
brackish samples are also quite well known as marine forms,
It is of interest to note that Theristus (Trichothcristus) setosus, usually
known as a marine form, was found only in the sample of mud from
the bottom of "Heronry Pond".
All the specimens are deposited in the collections of the British
Museum (Natural History).
REFERENCES
Gerlach, S. A. (1954). Die freilebenden Nematoden der schleswig-
holsteinischen Kusten. Schr. naturw. Ver. 27, 1, pp.44-69.
Goodey, T. (1951). Soil and freshwater nematodes. London: Methuen
and Co. Ltd. xxvi + 390pp.
Man, J. G. de. (1876). Onderzoekingen over vrij in de aarde levande
Nematoden. Tydschr. Nederl. Dierk. Ver. 2, pp.78-196.
Schuurmans Stekhoven, J. H., Jr. (1935). Nematoda errantia. Tierw.
N. —u. Ostsee. Teil 5b, 173pp. (Lief. 28).
Maghraby, A. M. el and Perkins, E. J. (1956). Additions to the marine
fauna of Whitstable. Ann. Mag. nat. Hist. (12), 9, pp.481-496.
Lepidoptera in South-east Essex, 1958
BY H. C. HUGGINS, F.R.E.S.
The year 1958 was a most disappointing one in the area. Judging
from odd specimens captured there must have been a large and
long-sustained flow of immigrants, but owing to the vile weather
very few locally reared appeared, except in the case of the hardier
species.
The immigrants began on May 6th with a single Vanessa atalanta L.
(Red Admiral), odd specimens continued to appear for the rest of the
month and we had a large brood in August which continued on the
wing till October. On May 18th I saw V. cardui L. (Painted Lady)
on the wall between Tillingham and Bradwell and in the following
week a few at Westcliff. In August and early September a very large
brood appeared, I counted a score at once on a couple of buddleia
bushes opposite my house, but by the third week in September these
were all gone. Two Nomophila noctuella Schiff. (Rush Pearl) appeared
on May 11th and thenceforward the moth appeared in varying numbers
until October. I saw about 200 on the wall on May 18th with the