VPA 211: General Veterinary Parasitology and Helminthology (3+1)

MORPHOLOGY OF METASTRONGYLUS ELONGATUS

Family	Metastrongylidae
Genus	Metastrongylus
Species	M. elongatus
Common name	Lung worm of pig
Location	Bronchi
I/H	Earth worm

Morphology

• Male 28 mm, female 58 mm in length.
• The mouth is surrounded by 6 lips.
• In male the bursa is ill developed. The anterio lateral rays are swollen at the tip while mediolateral and posterio lateral rays are fused together.
• Spicules are very long slender and ending in a hook like structure.
• The tail end of female bent in a ventral direction.