Arthrolycosa Harger, 1874 † (original description)
Asellopsis Harger, 1874 accepted as Mancasellus Harger, 1876 (original description)
Cornulariella Verrill, 1874 accepted as Clavularia Blainville, 1830 (original description)
Dawsonella Bradley, 1874 † (original description)
Euchondria Meek, 1874 † (original description)
Miohippus Marsh, 1874 † (original description)
Morotherium Marsh, 1874 (original description)
Ophionemertes Verrill, 1874 (original description)
Phakerellia Verrill, 1874 accepted as Phakellia Bowerbank, 1862 (original description)
Pliohippus Marsh, 1874 † (original description)
Stylinodon Marsh, 1874 † (original description)