Patella aspera Lamarck, New to Norway

摘要: DURING an investigation of the ecology genus Patella in Norway last summer I had opportunity studying large populations from Western Norway. A close scrutiny morphology and habitat, as well their behaviour aquaria showed that two species were involved, common P. vulgata L. aspera Lamarck. This is first record for Norway, thus extending its northern limit north-eastern Scotland1 to western The fact was observed spawn area investigated shows established one has this year been found Stavanger (the island Rott) south islands west Bergen north. Further investigations distribution northwards will be undertaken autumn.