babesiosoma babesiosoma babesiosoma is a genus of parasitic alveolates in the phylum apicomplexia. babesiosoma scientific classification domain: eukaryota clade: diaphoretickes clade: sar clade: alveolata phylum: apicomplexa class: conoidasida order: eucoccidiorida family: dactylosomatidae genus: babesiosomajakowski and nigrelli, 1956 species babesiosoma bettencourti babesiosoma jahni babesiosoma mariae babesiosoma ophicephali babesiosoma scombri babesiosoma stableri babesiosoma tetragonis they have two hosts in their life cycle: the vertebrate hosts are fish and the invertebrate vectors are leeches. this genus has been poorly studied and little is known about it. history the genus was created in 1956 by jakowski and nigrelli. seven species have been recognised in this genus. meronts: these develop in erythrocytes and divide to produce four small merozoites, characteristically in a cruciform or rosette arrangement. gametocytes: these are larger and more elongated than the meronts and are generally club-shaped.