01a0486e-926d-4f4e-93d9-d9a54956e2db
The archiannelida of the estuarine area of the rivers Rhine, Meuse and Scheldt, with some remarks on their ecologyHalammohydra vermiformis and H. coronata (Hydrozoa), new to the fauna of the NetherlandsHesionura augeneri, Goniadella bobretzkii, and Parapodrilus psammophilus (Annelida, Polychaeta) new to the Netherlands