1. Pereopods 5–7; dactyls partly retractile, not hooded ......................... P. oleseni sp. nov.
Pereopods 5–7; dactyls fully retractile, hooded............................................................ 2
2. Pereopod 5 the longest. Pereopod 7 shorter than P 6. Head without rostrum.................. ............................................................................................... P. anomala Barnard, 1930
Pereopod 7 the longest,slightly longer than P 5 and longer than P 6. Head with short rostrum and anterolateral lobes ............................................................ P. wolffi sp. nov.