Arachnidiidae Hincks, 1880
Arachnidium clavatum Hincks, 1877
Arachnidium fibrosum Hincks, 1880
Arachnidium hippothoides Hincks, 1862
Arachnidium hippothooides Hincks, 1859
Arachnidium irregulare Harmer, 1915
Arachnidium lacourti d'Hondt & Faasse, 2006
Arachnidium simplex Hincks, 1880