Checklist of ascidians (Chordata, Tunicata) from the southern Gulf of Mexico Author A. Palomino-Alvarez, Lilian Author Moreira Rocha, Rosana Author Simoes, Nuno text ZooKeys 2019 832 1 33 http://dx.doi.org/10.3897/zookeys.832.31712 journal article http://dx.doi.org/10.3897/zookeys.832.31712 1313-2970-832-1 961F1299F1A3432794B315609F6F5A65 Botrylloides niger Herdman, 1886 Fig. 4Q Material examined. CAGoM-0029, CAGoM-0030, CAGoM-0032, CAGoM-0037, CAGoM-0038, Chel 2, 1 m, 11-05-2015, leg. L. Palomino-Alvarez; CAGoM-0040, Cel 2, 1 m, 11-05-2015, leg. L. Palomino-Alvarez; CAGoM-0185, Arc 3, 3 m, 30-10-2015, leg. L. Palomino-Alvarez. Photographed record (no specimens in collection): VeR, 8 m, 20-09-2015, L. Palomino-Alvarez Remarks. Botrylloides niger is among the species considered common and abundant in tropical waters ( Rocha et al. 2010 ) with a widespread geographical distribution, where it attaches to natural and artificial substrates ( Sheets et al. 2016 - as B. nigrum ). We found it beneath rocks, on coral reefs, in ports and lagoons. Global distribution. United States ( Van Name 1945 ), Mexico ( Van Name 1945 ), Bermuda ( Herdman 1886 ; Van Name 1902 , 1945 ; Monniot 1972 ), Belize ( Goodbody 2000 ), Panama ( Carman et al. 2011 ), Curacao (Goodbody 1984), Bonaire (Millar 1962), Venezuela ( Rocha et al. 2010 ; Carballo-Perez and Diaz 2011 ), Cuba ( Van Name 1945 ), Jamaica ( Goodbody 2003 ), Puerto Rico (Van Name), Guadeloupe ( Monniot 1983b ), Martinique ( Monniot 2018b as B. nigrum ), Antilles ( Gravier 1955 ; Van Name 1930 ), Tobago ( Cole 2012 ), Brazil ( Rodrigues 1962 ; Rocha and Costa 2005 ; Rocha and Kremer 2005 ; Rocha and Bonnet 2009 ; Dias et al. 2012 ), Morocco (Millar 1698), Senegal ( Monniot 1969 ), Israel Mediterranean ( Sheets et al. 2016 ), Singapore ( Sheets et al. 2016 ), Somalia ( Millar 1988 ), Madagascar ( Vasseur 1970 ), French Polynesia ( Monniot et al. 1985 ).