| A histological examination of the clitellum revealed that damage occurred to both male and female gonads. |
| Differently sized partners were seen stretching or contracting their body between the genital region and the clitellum. |
| The two species display similar body length and segment number as well as show resemblance in the shape of the clitellum and tubercula pubertatis. |
| The clitellum of each worm secretes mucus to form a slime tube around the earthworms. |
| Between segments 32 and 37 is the clitellum, a slightly bulged, discoloured organ that produces a cocoon for enclosing the earthworm's eggs. |
| The Polychaeta lack a clitellum and have parapodia, paddle-like appendages with numerous bristles or chaetae. |
