A new species of the genus Neostylodactylus Hayashi & Miyake, 1968 (Crustacea : Decapoda : Stylodactylidae) from southern Japan

A new species of stylodactylid shrimp, Neostylodactylus litoralis, is descr ibed and illustrated on the basis of four ovigerous females collected from sublittoral zones on the Ogasawara and Ryukyu Islands at depths of 3-10.5 m . This new species is readily distinguished from the five described species of Neostylodactylus Hayashi & Miyake in having a non-produced posterior ma rgin of the telson, the noticeably elongate mesialmost pair of posterior sp ines on the posterior margin of the telson, and unarmed meri of the third t o fifth pereiopods.