— Conradi, xxxvi, 383.
— similis, xxxvi, 383.
— inequalis, xliii, 145.f
— —, identical with the Periploma trapezoides of Deshayes, xliv, 420.
*Tornitella bullata, xxiii, 292.f
*Trichotropis costellatus, xxxiv, 219.
*Triton pyramidatum, xl, 99.f
Tritonia Reynoldsii, xxxiv, 217.
Trochlea, characters of genus, S. S. Haldeman, xlii, 216.
*Trocholites ammonius, xlvii, 368.