Gammarus inaequicauda Stock, 1966

3. Gammarus inaequicauda Stock, 1966 View in CoL

Synonyms: Gamnmarus campylops s. Sars (1890 -95); non G. campylops Leach, 1815 . This species is very close to G. insensibilis Stock, 1966

Descriptions and illustrations: Sars 1890 -95, p. 500, pl. 176-2 (as G. campylops ); Stock & Kant 1966, pp 9-11, figs 1-2.; Stock 1967, p. 22, figs 7-8.

Ecology and habitat: In Norway, this is a species of the shallow subtidal in protected, often densely vegetated areas of somewhat varying salinity. The intertidal in these areas is generally occupied by other Gammarus species, often G. salinus .

Distribution in Norway: This species was originally described from Moss in the Oslo fjord. Its distribution is not yet fully known, but it seems to be quite widespread in the right biotopes along the south coast ( Vader et al. 1984). Outside Norway, the only records still seem to be from Poland ( Jazdzewski 1970)

B. Gammarus oceanicus group.

This is a group of quite large, unicoloured, basically marine Gammarus species, with a northerly and amphi-atlantic distribution. They are basically sublittoral, but are found more often intertidally than the species in group A, especially in the far north. Along the Norwegian coast they live primarily among algae, but in Arctic areas they are often found in Marinogammarus -like biotopes, intertidally below stones.