Differences between annelid animals and arthropods are as follows:
Annelids | Arthropods |
Metameric segmentation is observed where the body is segmented from head to tail | Incomplete metameric segmentation. The body is not completely segmented |
They are referred to as segmented worms | They are termed as animals with jointed legs |
The coelom is the true body cavity they possess | Presence of a body cavity containing blood known as ‘haemocoel’ |
Breathing takes place through the skin | Breathing takes place through the trachea, gill, book lungs etc |
Most of the annelids are hermaphrodites | They have separate sexes |
Example – Nereis, Earthworm | Example – Housefly, crab |