Structure of Dero (With Diagram) | Zoology

In this article we will discuss about the structure of Dero with the help of a diagram.1. They are small, transparent and freshwater oligochaetes of reddish colour living in tubes. 2. Head not distinct but proboscis is elongated and prominent. 3. They have distinct metameric segmentation visible externally and the segments 45-48. 4. The setae are present only ventral sides [...]