Freshwater minibeasts (v. 0.5) (for beginners)

by Jon Rosewell, Pam Furniss

A basic key to major groups of invertebrates found in freshwater, based on material from the Open University course TXR174


This key can give extra weight to common species, so that the most common species are the most likely.

Do you want to include information on species distribution and abundance?

Yes, give extra weight to common species
No, treat all species equally