IOWATER Benthic Key
The benthic key can be printed in pdf format. This key was revised November 2001. Adobe Acrobat Reader is needed to print the pdf file. To download a free copy of Adobe Acrobat Reader, click here.
Page 1 of benthic key (front side; 139 kb)
Page 2 of benthic key (back side; 162 kb)