Macrozoobenthos Sorting Guide

My illustrated guide to central european fluvial macrozoobenthos. Includes 48 simplified illustrations of the common morphology of sorted groups! This guide is used by the Senckenberg Institute for Freshwater Ecology in Gelnhausen, and perhaps it can help your interns with their lab work as well. 

Disseminate as you please, this is intended to be an open teaching resource, but please do not remove my credit or edit it substantially.