| the biology of gyrodactylid monogeneans: the "russian-doll killers". | this article reviews the history of gyrodactylid research focussing on the unique anatomy, behaviour, ecology and evolution of the viviparous forms while identifying gaps in our knowledge and directions for future research. we provide the first summary of research on the oviparous gyrodactylids from south american catfish, and highlight the plesiomorphic characters shared by gyrodactylids and other primitive monogeneans. of these, the most important are the crawling, unciliated larva and the spi ... | 2007 | 17499102 |