Náttúrufræðingurinn - 1981, Blaðsíða 19

longa Ude. I garöbletlinum fannst auk
þessara tegunda Dendrobaena rubida
(Sav.). A. longa hefur ekki fundist á Is-
landi áður.
S U M M A R Y
A study of earthworms in
cultivated grassland in
N-Iceland
by Bjarni E. Guðleifsson and Rögnvaldur
Ólafsson, Exþerimental Farm, Mörðuvellir,
Hörgárdalur, Eyjafjörður, Iceland.
Earthworms (Lurnbricidae) were collected
three times from three hayfields and one
lawn at the Experimental Farm, Mööru-
vellir, Hörgárdalur, Eyjafjöröur, Northern-
Iceland. One of the hayfields was on peat
soil, another on sandy soil and the third one
on silty soil. AU three hayfields were
permanent grassland, cultivated many years
ago, well drained with mixcd vegetation. In
the lawn there were 6 species of earthworms,
5 species in the silty soil, 2 species in the
sandy soil and no earthworms were detected
in the peat soil. The most common earth-
worm species in the heyfields are Lumbricus
terrestris L. and Allolobophora caliginosa (Sav.)
and less frequent are L. rubellus Hoffm., A.
rosea (Sav.) and A. longa Ude. In addition to
these species thc lawn contained Dendrobaena
octaedra (Sav.). A. longa Ude has not been
reported previously from Iceland.
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