Host specificity and local infection dynamics of Kudoa leptacanthae n. sp. (Multivalvulida: Kudoidae) from the pericardial cavity of two Zoramia spp. (Perciformes: Apogonidae) at Lizard Island lagoon, Queensland, Australia

► Kudoa leptacanthae n. sp. is described from Zoramia leptacantha and Z. viridiventer. ► The host specificity of K. leptacanthae n. sp. is restricted to the genus Zoramia. ► Although unique this species shows a close taxonomic affinity to K. shiomitsui. ► The new taxon formed a well supported clade with all other heart dwelling kudoids.