Dendrogram resulting from a similarity matrix based on the Sørensen measure for component communities of adult autogenic helminth parasites of 10 fish species from Apazapan, Río La Antigua, Veracruz, Mexico. Host species are: Amex, A. mexicanus; Rgua, R. guatemalensis; Smar, S. marmoratus; Hbim, P. bimaculata; Pmex, Poecilia mexicana; Pgra, Poeciliosis gracilis; Psph, Poecilia sphenops; Xell, X. helleri; Tell, T. ellioti; Vfen, V. fenestrata.