Hyperiid Amphipods

Abstract

The knowledge of the hyperiid amphipods in Costa Rican waters is quite limited. The estimated number of species currently recognized is near 277; there are 222 known from the Pacific Ocean and 175 from the Atlantic. The number of species reported herein for Costa Rican waters is 34, all obtained from samples collected in waters of the Pacific side, and most of them generated quite recently. Previous records are revised and corrected. There are no records for the Caribbean coast of Costa Rica. Based on the regional (eastern tropical Pacific, western Caribbean Sea) faunistic records, the potential number of hyperiid species that could be found in Costa Rican waters is over 124.