The origin and development of the epidermis and associated structures in the cercaria of Cryptocotyle lingua (Creplin) (Digenea: Heterophyidae) from Littorina littorea (L.).
D000818:Animals; D010986:Platyhelminths / Q000196:embryology*; D012867:Skin / Q000196:embryology; D012908:Snails / Q000469:parasitology