The yellow tail worm is pale grey in colour. It has a distinctive yellow tip at the end of its tail. The yellow tail earthworm is endogeic, living within the top 20–30 cm of soil. It is widespread throughout New Zealand but less common than the grey worm or dung worm.
Scientific name: Octolasion cyaneum
Soil niche: endogeic
Length: 65–180 mm
Image: Ross Gray