Key to the species of Pseudopleonexes

1 Maxilla 1 palp with one article (Fig. 13) .............. Pseudopleonexes sheardi Just, 2002

- Maxilla 1 palp with two articles (Fig. 2)....................................................................... 2

2 Antenna 2 peduncle width similar to antenna 1 peduncle (Fig. 5) ............................... 3

- Antenna 2 robust, peduncle expanded more than antenna 1 peduncle (Fig. 2) ............ 4

3 Gnathopod 2 propodus produced anterodistally to form a setose lobe (Fig. 7) .............. ........................................................................................ Pseudopleonexes justi sp. nov.

- Gnathopod 2 propodus not forming a lobe (figure 10). Pseudopleonexes nexis sp. nov.

4 Antenna 1 subequal in length to antenna 2. Gnathopod 1 carpal lobe present (Figs. 1 and 3)......................................................................... Pseudopleonexes burney sp. nov.

- Antenna 1 longer than antenna 2. Gnathopod 1 carpal lobe absent (Fig. 9) .................. ..................................................................... Pseudopleonexes lessoniae (Hurley, 1954)