Giere, O. (1983). Morphology and fine structure of two marine tubificids (Oligochaeta), closely related to the gutless Phallodrilus spp. Helgolander Meeresuntersuchungen. 36: 231-241.
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Giere, O.
1983
Morphology and fine structure of two marine tubificids (Oligochaeta), closely related to the gutless Phallodrilus spp.