deposit feeder

https://doi.org/10.1351/goldbook.14575
Animal that feeds on particles of matter in the soil or sediment, usually the top soil or sediment where it is filled with organic matter. Feeding takes place either by ingesting soil or sediment or by trapping particles as they fall.
Examples: Earthworms, terebellids, and fiddler crabs.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 865 [Terms] [Paper]