Abstract
A checklist of thoracican barnacles from the Colombian Pacific is presented. Using published records, samples deposited in collections, and field observations, 16 barnacle taxa were identified and reported. With this information, the number of thoracican barnacles increases to 24 for the Colombian coasts (11 taxa exclusive to the Pacific coast, 8 exclusive to the Atlantic coast and 5 shared between both coasts). Among the barnacles reported in this work, four are pelagic and four are invasive; two of the latter were introduced from the Atlantic to the Pacific and two from the Pacific to the Atlantic.