A number of samples collected by the Scotia and Explorer Expeditions in 1950 in the North Atlantic were found among undetermined material left by Dr. J. J. TESCH after his death in 1954. Some interesting specimens in these samples seem to justify their publication. My grateful acknowledgements are tendered to Dr. J. H. FRASER of the Marine Laboratory at Aberdeen, for so kindly giving me full information concerning the samples. The author is also very much indebted to Dr. C. O. VAN REGTEREN ALTENA who lent the material of both expeditions, which is part of the collection of the Leiden Museum. Table I gives an enumeration of the species met with and the data concerning the stations. In Fig. 1 the stations are given together with surface currents.