Talitrid amphipods from India, East Africa and the Red Sea (Amphipoda, Senticaudata, Talitroidea, Talitridae).

Two new coastal talitrid genera are described, Austropacifica gen. nov., known from tropical Australia, Papua New Guinea and the south-western Pacific Ocean and Gazia gen. nov., ranging from East Africa to the Caribbean Sea. Two new species of coastal talitrids are described: Gazia gazi gen. nov., sp. nov. from Gazi Bay, Kenya and Talorchestia anakao sp. nov. from western Madagascar. The species known as Talorchestia affinis Maccagno, 1936 is redescribed and its distribution is extended from the western coast of the Red Sea to Kenya based on new collections. Talitrid generic and species level diversity in the Indo Pacific is discussed and a dichotomous key to all known species of Talorchestia is provided.