Species japonicus
Penaeus (Marsupenaeus) japonicus

- Rostrum with an accessory carina on the blade
- Telson armed with 3 pairs of movable spines
- Last abdominal segment colour band not reaching the ventral margin
(discontinuos)
- Petasma with long distomedian projections distinctly overhanging distal
margin of costae, tip enlarged
- Ventral costae slightly broadened apically and unarmed
- Outer surface of lateral lobes not tuberculate
- Thelycum without lateral plates but with a pouch widely open anteriorly
- Anterior and posterior processes forming a triangular, concave plate
