NEMATHELMINTHES
INTRODUCTION—NEMATODA—ANATOMY—EMBRYOLOGY—CLASSIFICATION—ASCARIDAE
—STRONGYLIDAE—TRICHOTRACHELIDAE—FILARIIDAE—MERMITHIDAE—ANGUILLULIDAE
—ENOPLIDAE—PARASITISM: NEMATOMORPHA—ANATOMY—CLASSIFICATION
—LIFE-HISTORY: ACANTHOCEPHALA—ANATOMY—EMBRYOLOGY—CLASSIFICATION 123