Praise for the previous volumes
"Keys to the Trematoda will become the standard reference on the group for many years. Given the infrequency of appearance of such large works and, this is likelyto remain the definitive work for the first half of this centuryand to find a place on book-shleves all over this planet"
David Blair, School of Tropical Biology, Australia
"Keys to the Trematoda will undoubtably represent an indespensible source of basic information about the systematics of these helminths"
Schloz and Horak, Folia Parasitologica
"The editors and the authors have succeeded in preparing a book which is valuable to experts, practising Parasitologists and beginners, and they should be congratulated on their great success"
Zdislaw Swiderski and Boyko Georgiev, Acta Parasitologica, 2005, 50(4)