Trichostrongylus Looss, 1905

Trichostrongylus andreevi Grigorian, 1952

Trichostrongylus askivali Dunn, 1964

Trichostrongylus axei (Cobbold, 1879)

Trichostrongylus brevis Otsuru, 1962

Trichostrongylus calcaratus Ransom, 1911

Trichostrongylus capricola Ransom, 1907

Trichostrongylus colubriformis (Giles, 1892)

Trichostrongylus lerouxi Biocca, Chabaud & Ghadirian, 1974

Trichostrongylus longispicularis Gordon, 1933

Trichostrongylus medius Oliger, 1950

Trichostrongylus ostertagiaeformis Kadenazii, 1957

Trichostrongylus pietersei Le Roux, 1932

Trichostrongylus probolurus (Railliet, 1896)

Trichostrongylus retortaeformis (Zeder, 1800)

Trichostrongylus skrjabini Kalantarian, 1928

Trichostrongylus suis Iwanitzki, 1930

Trichostrongylus tenuis (Mehlin, 1846)

Trichostrongylus ventricosus (Rudolphi, 1809)