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Notes on Norwegian marine amphipods 1–3

1967; Taylor & Francis; Volume: 29; Issue: 1 Linguagem: Inglês

10.1080/00364827.1967.10411089

1503-1128

Wim Vader,

Marine Biology and Ecology Research

Abstract 1. The first Norwegian specimens of the lysianassid amphipod Acidostoma nodiferum Stephensen are recorded, and the distribution of the species is mapped. The animals were collected in association with the sea anemone Actinostola callosa (Verrill), which is in agreement with recent anatomical work suggesting ectoparasitical habits for species of Acidostoma. 2. The Norwegian records of the photid amphipod Leptocheirus hirsutimanus (Bate) are enumerated, and some notes given on a specimen recently collected near Bergen. Earlier reports of the occurrence of L. pilosus Zaddach in Norway are erroneous, but both this species and L. pectinatus (Norman) may eventually be found in Norwegian waters, judging from their distribution in NW Europe. 3. The lysianassid amphipod Onisimus normani G. O. Sars is shown, both from scattered notes in the literature and from recent observations near Bergen, to be a regular associate of a number of large sea anemone species. The distribution of O. normani is mapped and some figures are given. The nature of the association between Onisimus and Anthozoa is still unknown, and a review of the few similar associations known from the literature shows that the nature of these associations is not known either. Part of the Onisimus normani collected near Bergen was found to be infested with cryptoniscid parasites, probably of the little known family Podasconidae.