Helgason, G. V.; Erséus, C. (1987). Three new species of Tubificoides (Oligochaeta, Tubificidae) from the North-West Atlantic and notes on geographic variation in the circumpolar T. kozloffi. Sarsia. 72(2): 159-169.
Three new species of Tubificoides (Oligochaeta, Tubificidae) from the North-West Atlantic and notes on geographic variation in the circumpolar T. kozloffi