Worms
![](https://oldwww.landcareresearch.co.nz/__data/assets/image/0003/2649/varieties/thumb200.jpg)
Order: Oligochaeta
Size range
- Long, thin animals; one exceptional species up to 2 metres.
Distribution
- New Zealand and introduced species
Life History
- Earthworms of various sorts
- Feed on decaying vegetation
- Aerate and mix soil
- Some species in fresh water
- Some species restricted to compost heap–type situation