a summary of taxonomic changes recently approved by ictv m.a. mayo scottish crop research institute, dundee, u.k. a number of taxonomic proposals were approved by the executive committee of the international committee on taxonomy of viruses (ictv) at its meeting in houston earlier this year. these are listed in [1]. these proposals have now been approved by a vote of the full ictv, as required by ictv statutes [2]. the resulting changes include the creation of 6 new families and 8 new genera. these are listed below in tables 1 and 2 respectively. names of three genera were also changed (table 3). the other changes are to the lists, and in a few instances the names, of species classified in particular genera. for a listing of these changes, the reader is referred to the detailed listing of the proposals in [1]. table 1. new virus families table 2. new virus genera table 3. genus name changes references: 1. mayo ma (2002) virus taxonomy – houston 2002. arch virol 147: 1071–1076 2. van regenmortel mhv, fauquet cm, bishop dhl, carstens e, estes m, lemon s, maniloff j, mayo ma, mcgeoch d, pringle cr, wickner rb (2000) (eds) virus taxonomy. seventh report of the international committee on taxonomy of viruses. academic press, new york author's address: dr. m. a. mayo, scottish crop research institute, invergowrie, dundee, dd2 5da, u.k.; e-mail: mmayo@scri.sari.ac.uka summary of taxonomic changes recently approved by ictv m.a. mayo scottish crop research institute, dundee, u.k. a number of taxonomic proposals were approved by the executive committee of the international committee on taxonomy of viruses (ictv) at its meeting in houston earlier this year. these are listed in [1]. these proposals have now been approved by a vote of the full ictv, as required by ictv statutes [2]. the resulting changes include the creation of 6 new families and 8 new genera. these are listed below in tables 1 and 2 respectively. names of three genera were also changed (table 3). the other changes are to the lists, and in a few instances the names, of species classified in particular genera. for a listing of these changes, the reader is referred to the detailed listing of the proposals in [1]. table 1. new virus families table 2. new virus genera table 3. genus name changes references: 1. mayo ma (2002) virus taxonomy – houston 2002. arch virol 147: 1071–1076 2. van regenmortel mhv, fauquet cm, bishop dhl, carstens e, estes m, lemon s, maniloff j, mayo ma, mcgeoch d, pringle cr, wickner rb (2000) (eds) virus taxonomy. seventh report of the international committee on taxonomy of viruses. academic press, new york author's address: dr. m. a. mayo, scottish crop research institute, invergowrie, dundee, dd2 5da, u.k.; e-mail: mmayo@scri.sari.ac.uk