Familiarise yourself with the common British earthworm species using the gallery below.
Select an earthworm image to see a summary of their characteristics, what they eat and where they live.
The most reliable way to identify earthworms you find during your survey is to use our keys:
Soil and earthworm field guide (PDF, 949KB)
Grassland earthworm key (PDF, 805KB)
Images courtesy of Harry Taylor © Natural History Museum