Distribution and habitat of four species of Alpheus fabricius, 1798 (Alpheus bellimanus Lockington, 1877; A-cristulifrons Rathbun, 1900; A-panamensis Kingsley, 1878; and A-malleator Dana, 1852) (Caridea, Alpheidae) along the Pacific coast of Mexico

The geographic distribution of four species of Alpheus shrimp in the Mexican Pacific is reviewed on the basis of new collections. The habitat of two species trawled on the continental platform (A. bellimanus and A. cristulifrons) is precised in terms of depth, sediment composition, epibenthic water temperature, and dissolved oxygen content. A second record for A. panamensis is provided and records for A. malleator in the southern Gulf of California are summarized.