Abstract
A new sphyrapodid tanaidacean, Sphyrapus caribensis sp. nov. is described and a new record of Kudinopasternakia siegi is reported for the Colombian Caribbean based on samples collected during cruises in 2014-2015. The new species appears to be most closely related to the northeast Atlantic species, Sphyrapus malleolus. Sphyrapus caribensis can be distinguished from Sphyrapus malleolus by a combination of characters, including the maxillipedal basis without long distal seta, the number of setae on the distoventral margin of pereopods 1 and 2, and the number of plumose seta on the pleopod basis. A key for the separation of Sphyrapus species is presented.