Lita Greve

The biology of some tanaidacea from raunefjorden, Western Norway

Abstract Thirteen species of tanaidaceans have been investigated over a period of one year. For some species the material was too small to offer any information, from others comprehensive enough to permit discussing the biology. The Norwegian distribution is given, with new localities for Leptognathia Longiremis and Typhlotanais tenuicornis. Some species have had their bathymetrical distribution extended by several hundred meters, viz. Leptognathia brevimanu, L. filiformis, Typhlotanais aequiremis and T. brevicornis.

A New epigaridean from Western Norway, parasite on tanaidagea

Abstract A new epicaridean parasite of the family Dajidae, Microdajus langi, is described and illustrated. It was found on Haplocope angusta, Leptognathia breviremis and Typhlotanais aequiremis in Raunefjorden, western Norway. This is the first record of Dajidae on tanaidaceans.

A population of Chlamys islandica (O. F. Müller) found in western Norway

Abstract A population of the Iceland scallop (Chlamys islandica) from western Norway is described. Information on the topography and hydrography of the locality and description of the habitat is given. 88 scallops were measured and the results are given. This is the southernmost known population of the Iceland scallop in Europe, but isolated specimens are reported further south.

On the tube building of some Tanaidacea

Abstract The rearing of 12 different species of Tanaidacea in aquaria is described with particular reference to the tube building. Other results obtained are briefly mentioned.

The genera Spirontocaris, Lebbeus, Eualus and Thoralus in Norwegian waters (crust. dec.)

Abstract The paper deals with the genera Spirontocaris, Lebbeus, Eualus and Thoralus, with eight species (see Contents), their systematic position, and their occurrence along the Norwegian roast. S. lilljeborgi, L. polaris and E. pusiolus are common in the whole area. T. cranchii and E. occultus are frequently found in southern Norway. E. occultus is recorded for the first time from Norway. S. spinus, S. phippsi and E. gaimardii are common in north Norway, having their southern limit in western Norway. A key to the Norwegian species is given, and a short note on the two parasitic isopods found.

Some new records of tanaidagea from Norway

Abstract Of the six species mentioned, Cryptocope arcticaHansen, 1886 is new to the Norwegian marine fauna. New Norwegian records are given for four others. Some morphological details of Typhlotanais microchelesG. O. Sars, 1882, are discussed and a lectotype of this species is designated.

First record of the thalassinid Callianassa subterranea (Montagu) (Crustacea, Decapoda) from the coast of Norway

A small specimen of Callianassa subterranea has been found on the south coast of Norway between 60 and 100 m depth. This is the first published record of the species from the Norwegian coast.

Anatanais normani (Richardson) found near Bermuda and notes on other Anatanais species

Abstract Five specimens of Anatanais normani (Richardson, 1905), one of them ovigerous, were collected SE of Bermuda in floating Sargassum natans. They are compared with Richardsons type material and some important features of this are also described. The main difference lies in the smaller size of the Bermuda specimens. Anatanais lineatus (Nordenstam, 1930) is considered a synonym of A, normani (Richardson).

Callionymus reticulatus (Pisces, Callionymidae) from western Norway

Abstract Three specimens of the dragonet, Callionymus reticulatus, are recorded from western Norway, one taken in 1976,, the other two found among museum material from last century. This species has previously not been found north of 55°N in the North Sea.

Tanaidacea from Hardangerfjorden, Western Norway

Abstract Fourteen species of tanaidaceans are with certainty recorded from Hardangerfjorden. Anarthrura simplex, Leptagnathia breviremis, L. dentifera, L. gracilis, L. langiremis, L. manca, and Strongylura cylindrata are reported for the first time from the fjord.