Schistosomatidae

noun plural

Schis·​to·​so·​mat·​i·​dae ˌshis-tə-sō-ˈmat-ə-ˌdē  ˌskis- 

: a family of slender elongated digenetic trematodes of the superfamily Schistosomatoidea in which the sexes are separate and in which marked sexual dimorphism is usually present