STRUCTURE AND FUNCTION IN THE NEMATODE PHARYNX. I. THE STRUCTURE OF THE PHARYNGES OF ASCARIS LUMBRICOIDES, OXYURIS EQUI, APLECTANA BREVICAUDATA AND PANAGRELLUS SILUSIAE
STRUCTURE AND FUNCTION IN THE NEMATODE PHARYNX. I. THE STRUCTURE OF THE PHARYNGES OF ASCARIS LUMBRICOIDES, OXYURIS EQUI, APLECTANA BREVICAUDATA AND PANAGRELLUS SILUSIAE(English)