%0 Journal Article %T Morphological aspects of marine monogeneans (Platyhelminthes) parasitic on the gills of Auxis thazard (Lac¨¦p¨¨de) (Scombridae) from Rio de Janeiro, Brazil %A Mogrovejo %A Cristina Dias %A Lent %A Herman %A Santos %A Cl¨˘udia Portes %J Revista Brasileira de Zoologia %D 2004 %I Scientific Electronic Library Online %R 10.1590/S0101-81752004000200007 %X allopseudaxine macrova (unnithan, 1957), churavera triangula (mamaev, 1967), hexostoma auxisi palombi, 1943 and h. keokeo yamaguti, 1968 are studied based on light and scanning electron microscopy. the previously proposed synonymy of h. auxisi and h. keokeo is not accepted. morphological changes between juvenile and adult hexostomatids are highlighted. %K allopseudaxine macrova %K churavera triangula %K hexostoma auxisi %K hexostoma keokeo %K monogenea. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0101-81752004000200007&lng=en&nrm=iso&tlng=en