The objective of this study was to determine the structure of molluscan communities in shallow subtidal rocky bottoms of Acapulco, Mexico. Thirteen samplings were performed at 8 stations in 2012 (seven samplings), 2014 (four), and 2015 (two). The collection of the mollusks in each station was done at a maximum depth of 5 m for 1 h by 3 divers. A total of 2086 specimens belonging to 89 species, 36 families, and 3 classes of mollusks were identified. Gastropoda was the most diverse and abundant group. Calyptreaidae, Columbellidae, and Muricidae had >5 species, but Pisaniidae, Conidae, Fasciolariidae, and Muricidae had ≥15% of relative abundance. |