Rostrum without ventral teeth

A distal fixed pair of spines on the telson and 1-3 pairs of mobile spines

Petasma symmetrical

3rd maxilliped without basial spine

Carapace with longitudinal sutures extending from post0orbital margin to almost posterior margin

Parapenaeid spine minute or absent

Second pereopod without a basal spine

No distal fixed pair of spines on the telson

Lateral mobile spines may be present

No exopod on 5th preopod, pleurobranch present on penultimate thoracic segment

3rd maxilliped with basial spine

2 arthrobranchs present on last thoracic segment, one of them well developed, the other vestigial

Basial spines present on second and third pereopod

Carapace without longitudinal suture

Ischial spine on 2nd pereopod present

First pereopods without an ischial spine

Carapace with longitudinal sutures

Ischial spine on 2nd pereopod absent

3rd pereopod with epipodite

First pereopod with ischial spine which may be minute

Longitudinal suture short; epipid present on third pereopod