Lumbriculida

Brinkhurst, R. O., & Jamieson, B. G. M. (1971). Aquatic oligochaeta of the world. [Book], Oliver & Boyd, Edinburgh, 860 pages, With contributions by D. G. Cook, D. V. Anderson, J. Van der Land. https://www.marinespecies.org/aphia.php?p=sourcedetails&id=280345