Pycnoptychia torrei (R. Arango, 1876) Cuba
Goniapex townsendi (P. Bartsch, 1906) Chihuahua, Mexico
Trilamellaxis transitoria (C. de la Torre, 1911) Cuba
Urocoptis transparens (L. Pfeiffer) Jamaica
Anoma tricolor L. Pfeiffer, 1852 Jamaica
Badiofaux trilamellata (L. Pfeiffer, 1864) Jamaica
Badiofaux trilamellata tomasensis C. de la Torre& P. Bartsch, 1972 Cuba
Gongylostoma trimellata (L. Pfeiffer, 1864) Cuba18 mm
Pycnoptychia trina C. de la Torre& P. Bartsch, 1972 Cuba
Torrecoptis trincherasensis C. de la Torre& P. Bartsch, 1972 Cuba
Microceramus trinidadensis C. de la Torre& P. Bartsch, 1972 Cuba
Brachypodella trinitaria (L. Pfeiffer, 1860) Trinidad and Tobago
Liocallonia triplicata (R. Arango, 1882) Cuba
Amphicosmia truncatula (J.B.P.A. Lamarck, 1822) Haiti
Bostrichocentrum tryoni (L. Pfeiffer, 1867) Puebla, Mexico
Centralia tuba (C. de la Torre, 1911) Cuba
Tomelasmus tumidiorus (G.B. Sowerby, 1875) Cuba
Brachypodella tumidula W.J. Clench& C.G. Aguayo, 1957 Haiti10,9 mm
Brachypodella turcasiana (J. Gundlach in L. Pfeiffer, 1859) Cuba
Centralia turgida (C. de la Torre, 1911) Cuba
Centralia turgida doloresensis C. de la Torre& P. Bartsch, 1972 Cuba
Centralia turgida guajacoensis C. de la Torre& P. Bartsch, 1972 Cuba
Cochlodinella turiguanoensis C. de la Torre& P. Bartsch, 1972 Cuba
Gongylostomella turneri (H.A. Pilsbry, 1930) Cuba
Microceramus turricula (L. Pfeiffer, 1839) Cuba
Coelocentrum turris (L. Pfeiffer, 1856) Chiapas, Mexico
Coelocentrum tyla F.G. Thompson, 1968 Chiapas, Mexico
Idiostemma uncata (L. Pfeiffer, 1859) Cuba
Torrecoptis unctuella C. de la Torre& P. Bartsch, 1972 Cuba14,39 mm
Uncinicoptis unguiculata (R. Arango, 1880) Cuba
Macroceramus unicarinatus (J.B.P.A. Lamarck, 1822)
Macroceramus utriculus C. de la Torre& P. Bartsch, 1972 Cuba
Spiroceramus vanattai W.J. Clench Cuba
Macroceramus vanattai H.A. Pilsbry, 1930 Cuba
Spartocentrum vanduzeei G.D. Hanna, 1923 Mexico, Puerto Escondido25,6 mm