New records of pontoniine shrimp genus Onycocaris Nobili, 1904 (Crustacea: Decapoda: Palaemonidae) from the Indo-Pacific with the description of two new species from French Polynesia

Several new species and records of representatives of the genus Onycocaris from Indo-Pacific are presented in the paper. A local diversity of Onycocaris species is studied for Moorea, French Polynesia, based on a collection of University of Florida, Gainesville, FL, USA. As a result, four Onycocaris species are recorded from Moorea including two species (Onycocaris zarenkovi sp.n. and Onycocaris rudolfi sp.n.) described as new to science. Additionally, a specimen of O. spinosa is described from Australia and several specimens of O. callyspongia are described from Chiba Peninsula of Honsu Island, Japan. Discussion on differential morphological features of new species as well as separation of several species groups within the genus are presented. A renewed identification key for "Onycocaris profunda-species group" is presented.