The planktonic copepods (Calanoida, cyclopoida, monstrilloida) of Ungava Bay, with special reference to the biology of Pseudocalanus minutes and Calanus finmarchicus.

Collections of planktonic copepods of Ungava Bay and central Hudson Strait were made during late June, July and August of 1947, 1949 and 1950. The following twenty-two species have been identified: Calanus finmarchicus, C.hyperboreus, C.helgolandicus, Pseudocalanus minutus , Microcalanus pygmaeus, Gaidius tenuispinus, Aetideopsis rostrata, Pareuchaeta norvegica, P.glacialis, Eurytemora americana, Metridia longa,Pleuromamma robusta, Heterorhabdus norvegicus, Acartia longiremis, A.bifilosa, Oithona similis, Oncaea borealis, Cyc10pina gracilis, C,Schneideri, Monstrilla dubia, M.helgolandica and M,canadensis. The latter five species have not previously been recorded from the western North Atlantic