Nephridia in earthworms are same in structure that are further classify into different types on their location.
- Septal Nephridia- It is located in both sides of the inter segmental septa from the fifteen segment till the end
- Pharyngeal Nephridia-It is located in the fourth, fifth,and sixth segment of the earthworm.
- Integumentary Nephridia- It is located in the body wall of earthworms .For example – the integument of the earthworm.