Download or read book Keys to the Trematoda written by David Ian Gibson and published by CABI. This book was released on 2002 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, in three volumes, presents a detailed revision of the systematics and taxonomy of the platyhelminth class Trematoda, subclasses Aspidogastrea and Digenea, with keys for the identification of these parasites at the superfamily, family, subfamily and generic levels. The trematodes areparasitic worms infecting all vertebrate groups and include families of significance to human and animal health, with considerable economic impact. The first volume covers the subclass Aspidogastrea and order Strigeida, while the second and third volumes cover the orders Echinostomida andPlagiorchiida.