Tetragonostea Herrmannsen, 1849 accepted as Entodesma Philippi, 1845 (original description)
Theloconus Herrmannsen, 1849 (original description)
Theloderma Herrmannsen, 1849 accepted as Theliderma Swainson, 1840 (original description)
Thelodomus Herrmannsen, 1849 (original description)
Thelodonta Herrmannsen, 1849 (original description)
Thisoa Herrmannsen, 1849 (original description)
Tonnites Herrmannsen, 1849 (original description)
Volutilites Herrmannsen, 1849 † accepted as Volutilithes Swainson, 1831 † (original description)
Xya Herrmannsen, 1849 (original description)
Xyrama Herrmannsen, 1849 (original description)
Zaraphia Herrmannsen, 1849 (original description)