This province covers the following ecoregions:
|62. Bermudan||Bermuda||Anonymous, 1978 (protected species).|
|63. Bahamian||Bahamas and the Bimini chain of Islands, Turks and Caicos Islands.||Redfern, 2001, 2013 (Abaco, Bahamas)|
|64. Eastern Caribbean||Virgin Islands, Anguilla, Saint Martin/St. Maarten, Saba, St. Eustatius, St. Kitts and Nevis, Barbuda, St. John's, Montserrat, Guadeloupe, Dominica, Martinique, St. Lucia, St. Vincent and the Grenadines, Barbados, Grenada.||Paulmier, 2007, 2014, 2015 (French Antilles).|
|65. Greater Antilles||Cuba, Hispaniola (Haiti and Dominican Republic), Puerto Rico, Jamaica and the Cayman Islands.||Abbott, 1958 (Grand Cayman Island): Humphrey, 1975 (Jamaica).|
|66. Southern Caribbean||Guajira District coastline, Colombia and Venezuelan coastline as well as several offshore islands (Aruba, Bonaire, Curaçao, Los Roques, Margarita) nearby.||Coomans, 1958, De Jong & Coomans, 1988 (Aruba, Bonaire, Curaçao); Daccarett & Bossio, 2011 (Colombia).|
|67. Southwestern Caribbean||Remaining Colombian coastline, Panama, Costa Rica, Nicaragua and NE Honduras.||Petuch, 1981 (Venezuela and Colombia); Daccarett & Bossio, 2011 (Colombia).|
|68. Western Caribbean||NW Honduras, Belize, and Quintana Roo coastline of Yucatan, Mexico.||Vokes & Vokes, 1983 (Yucatan shallow water molluscs).|
|69. Southern Gulf of Mexico||Remaining Caribbean coastline of Mexico to the USA border.||Vokes & Vokes, 1983 (Yucatan shallow water molluscs); Rosenberg, Moretzsohn & Garcia, 2009 (Gulf of Mexico species list).|
|70. Floridian||Florida Keys and the southern tip of Florida.||Petuch & Sargent, 2011, 2012 (Florida Keys).|
Each ecoregion has its own specific species composition with many endemic species and therefor its ow sub-page.
Several alternative divisions of this province were proposed. Diaz (1995) divided the Southern Caribbean ecoregion into two subprovinces: the Samarian-Venezuelan subrovince and the Goajira subprovince.
Faunistic works (whole province): Petuch (2013)