Martín-Cao-Romero, C., Solís-Marín, F.A., Alvarado, J.J. and Laguarda-Figueras, A. 2017. New record of the starfish Ophidiaster ludwigi (Echinodermata: Asteroidea) from the Pacific of Mexico and Costa Rica. Revista de Biología Tropical. 65, S1 (Nov. 2017), S253–S257. DOI:https://doi.org/10.15517/rbt.v65i1-1.31693.