Dictionary of Ichthyology
Brian W. Coad and Don E. McAllister†
is now permanently available at the Gutenberg Press and will no longer be updated. It is 3309 pages long and so takes some time to load and you may have to register. There are over 27,190 terms defined and over 2360 illustrations. http://gutenberg.cc/eBooks/WPLBN0100750819-Dictionary%20of%20Ichthyology.aspx or
http://worldlibrary.org/eBooks/WPLBN0100750819-Dictionary%20of%20Ichthyology.aspx
or
from this website.
www.briancoad.com