Species canaliculatus
Penaeus (Melicertus) canaliculatus

- Telson unarmed
- Adrostral crest and groove long, extending almost to posterior margin
of carapace, the groove wide
- Last abdominal segment colour bands reaching the ventral margin
- Petasma with short distomedian projections, reaching or slightly overhanging
distal margin of costae.
- Ventral costae broadened apically and bearing minute spinules at tip,
outer surface of lateral lobes not tuberculate
- Thelycum with lateral plates, their anteromedian margins diverging,
then turning in a broad arc continuous with anterolateral margins
- Anterior process triangular, anterior edges raised in lateral ridges
delimiting a median depressed area.
