Abstract
The spermatozoa of the genus Codakia, Lucinidae family, will be described using the Transmission Electron Microscopy (TEM). There is controversy about the phylogenetic relationships in the superfamily Lucinoidea, which once included six families (Lucinidae, Fimbriidae, Thyasiridae, Ungulinidae, Mactromyidae and Cyrenoididae), however, by molecular analysis, currently comprises only two, L…