Triphora abacoensis E. Rolán & C. Redfern,2008 Bahamas
Viriola abbotti (F. Baker& V.D.P. Spicer, 1935) Hawaii9,1 mm
Triphora abrupta (W.H. Dall, 1881) Cuba
Triphora acicula A. Issel, 1869 Hawaii
Inella acicula C.F. Laseron, 1958
Inella aculeata S. Kosuge, 1962 Palau
Triphora acuta (L.C. Kiener, 1841)
Mastonia adamsi (G.P. Deshayes, 1863) Réunion
Triphora adamsi P. Bartsch, 1907 Galapagos
Marshallora adversa (G. Montagu, 1803) Italy, Cannizzaro6 mm
Iniforis aemulans (R.B. Hinds, 1843) Hawaii5 mm
Triphora aequatorialis K.H.J. Thiele, 1925
Triphora aethiopica K.H.J. Thiele, 1925 Zanzibar Island
Triphora affinis R.B. Hinds, 1843 Mzamba, Transkei, South Africa6 mm
Triphora africana P. Bartsch, 1915 South Africa, Jeffreys Bay7,5 mm
Opimaphora albescens C.F. Laseron, 1958 Queensland
Metaxia albicephala E.A. Kay, 1979 Hawaii3 mm
Latitriphora albida (A. Adams, 1854) Honduras9 mm
Triphora alboapicata K.H.J. Thiele, 1930
Coriophora albocaelarea (C.F. Laseron, 1958) Queensland
Opimaphora albogemmata C.F. Laseron, 1958
Iniforis albogranosa (S. Kosuge, 1961) Philippines, Cebu8,6 mm
Viriolopsis alboguttata (J.R. le B. Tomlin, 1926) South Africa5 mm
Viriola albomarmorata (R.P.J. Hervier, 1898) Réunion
Monophorus alboranensis E. Rolán & A. Peñas, 2001 Alboran Sea
Obesula albovittata (C. Hedley, 1903) Australia, Sydney
Aclophora albozonata C.F. Laseron, 1958 Northern Territory
Triphora alexandri J.R. le B. Tomlin, 1931
Mastonia algens F.P. Jousseaume, 1898 Djibouti
Litharium algoense K.H.J. Thiele, 1925 South Africa16,7 mm
Euthymella alternata C.F. Laseron, 1958 Galapagos
Triphora alternata C.B. Adams, 1852
Aclophora alveata C.F. Laseron, 1958
Mastonia alveata F.P. Jousseaume, 1898 Queensland
Cautotriphora alveolata (A. Adams & L.A. Reeve,1850) Madagascar