Rhynchocinetes holthuisi, a new shrimp from the Gulf of Aqaba, northern Red Sea (Crustacea: Decapoda: Rhynchocinetidae)

A new rhynchocinetid shrimp, Rhynchocinetes holthuisi, is described and illustrated on the basis of five males, one female and three ovigerous females from the Gulf of Aqaba, northern Red Sea. This species is readily distinguished from four closely related species with arthrobranchs on the third maxilliped and the anterior two pereiopods in combination of the length of the stylocerite, the forms of the antennal basicerite and the endopod of male first pleopod, and meral and dactylar spinulation of the ambulatory pereiopods. It is considered to be an endemic species in the northern Red Sea.