Earthworm Society of Britain - Earthworm Features Our scientists look at the external features of earthworms to determine the species each specimen belongs to. This diagram (drawn by Irfaan) demonstrates the features
![Earthworm on lawn, Lumbricus terrestris showing segments and saddle, on grass with worm casts, UK Stock Photo - Alamy Earthworm on lawn, Lumbricus terrestris showing segments and saddle, on grass with worm casts, UK Stock Photo - Alamy](https://c8.alamy.com/comp/2A500PY/earthworm-on-lawn-lumbricus-terrestris-showing-segments-and-saddle-on-grass-with-worm-casts-uk-2A500PY.jpg)
Earthworm on lawn, Lumbricus terrestris showing segments and saddle, on grass with worm casts, UK Stock Photo - Alamy
![EARTHWORM - crawling over grass, showing saddle (Lumbricus terrestris), Stock Photo, Picture And Rights Managed Image. Pic. MEV-10855805 | agefotostock EARTHWORM - crawling over grass, showing saddle (Lumbricus terrestris), Stock Photo, Picture And Rights Managed Image. Pic. MEV-10855805 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/6d7cdecf2ed585711268c75c501abbd3/mev-10855805.jpg)