Marsden,-J.R.; Meeuwing,-J. Preferences of planktotrophic larvae of the tropical serpulid Spirobranchus giganteus (Pallas) for exudates of corals from a Barbados reef. J.-EXP.-MAR.-BIOL.-ECOL. 1990. vol. 137, no. 2, pp. 95- 104. In this study planktonic larvae of S. giganteus from the Barbados fringing reef were examined for preferences for six coral species not previously tested. Larvae were given a choice between a test coral, a reference coral (Montastrea cavernosa Linnaeus) and a glass bead control. S. giganteus larvae are known to have no preference for M. cavernosa . Larvae showed a preference for Porites astreoides Lamarck and Millepora complanata Lamarck, two species of coral commonly colonised by S. giganteus , no preference for Siderastrea siderea (Ellis et Solander), Dichocoenia stokesii Edwards et Haime and Dendrogyra cylindrus Ehrenberg, three species that are rarely or never colonised and no preference for Agaricia agaricites (Linnaeus), a coral whose role as a habitat for S. giganteus is unknown. The possibility that preferences of planktonic larvae may influence their distribution at the time of settlement is discussed.