Melita Leach 1814

Key to Korean species of Melita (modified from Tomikawa et al., 2018) 1. Epimeral plate 3 not produced posteroventrally; uropod 3, outer ramus uni-articulate............................... 2 Epimeral plate 3 produced posteroventrally; uropod 3, outer ramus bi-articulate................................... 7 2. Urosomite 2 with dorsodistal teeth........................................................................ 3 Urosomite 2 without dorsodistal teeth..................................................................... 4 3. Gnathopod 1, propodus with medial robust seta..................................... · M. bingoensis Yamato, 1987 Gnathopod 1, propodus without medial robust seta ·...................................... M. nagatai Yamato, 1987 4. Antenna 2, flagellum strongly setose............................................... M. setiflagella Yamato, 1988 Antenna 2, flagellum weakly setose...................................................................... 5 5. Antenna 1, accessory flagellum 4-articulate; gnathopod 2, propodus subquadrate.......... M. koreana Stephensen, 1944 Antenna 1, accessory flagellum 2-articulate; gnathopod 2, propodus subovate..................................... 6 6. Gnathopod 2, propodus elongate-ovate; uropod 3, outer ramus elongate, about 9 times longer than wide.................................................................................................. M. aestuarina sp. nov. Gnathopod 2, propodus subovate; uropod 3, outer ramus moderate, about 5 times longer than wide.................................................................................................... M. shimizui (Uéno, 1940) 7. Gnathopod 1, propodus with truncated anterodistal hood; pleonite 3 with 2 dorsal teeth....... M. rylovae Bulycheva, 1955 Gnathopod 1, propodus with triangular anterodistal hood; pleonite 3 without 2 dorsal teeth......................................................................................... M. anmyeonensis Shin, Coleman & Kim, 2013