Introduction
Identification key

Trichostrongylus
Bovine Ostertagia
Ovine Ostertagia
Haemonchus
Nematodirus
Bunostomum
Oesophagostomum/Chabertia
Strongyloides

Teladorsagia circumcincta

16 gut cells
Head square
Sheath tail forms short cone
Length 797-907 µm