FAMILY : PENAEIDAE

Carapace with lateral keels

Mandible cutting portion elongate

Genus Funchalia

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal and ventral marigin

Genus Penaeus

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal margin only

Telson tridentate with fixed spine on each side of tip

Rostrum shorter than the eyes

Antenulla peduncle - parapenaeid spine absent

Carapace longitudinal suture absent

Pereopods - exopod on 2 to 5 present

Thoracic segment - pleurobranch absent on penultimate segment

Telson armed with lateral spine

Perepods - basial spine present on 1st

Genus Trachypenaeopsis

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal margin only

Telson tridentate with fixed spine on each side of tip

Rostrum longer than the eyes

Antenulla penduncle spine present on inner border of first article (parapenaeid spine)

Carapace longitudinal and transverse sutures present

Genus Parapenaeus

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal margin only

Telson tridentate with fixed spine on each side of tip

Rostrum longer than the eyes

Antenulla penduncle spine present on inner border of first article (parapenaeid spine)

Carapace longitudinal or transverse sutures absent

Last thoracic segment - single arthrobranch present

Genus Penaeopsis

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal margin only

Telson tridentate with fixed spine on each side of tip

Rostrum longer than the eyes

Antenulla penduncle spine present on inner border of first article (parapenaeid spine)

Carapace longitudinal or transverse sutures absent

Male petasma asymmetrical

Last thoracic segment - two arthrobranch present, one of them vestigal

Genus Metapenaeopsis

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal margin only

Antennula penduncle - parapenaeid spine absent

Telson without fixed spine

Pereopods - exopods on 2 to 5 absent

Genus Macropetasma

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal margin only

Antennula penduncle - parapenaeid spine absent

Pereopod - exopods on 2 to 4 present

Thoracic segment - pleurobranch present on penultimate segment

Genus Metapenaeus

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal margin only

Antennula penduncle - parapenaeid spine absent

Carapace longitudinal suture absent

Pereopods - exopod on 2 to 5 present

Thoracic segment - pleurobranch absent on penultimate segment

Pereopod - exopods on 2 to 4 present

Telson unarmed

Pereopods -basial spine present on 2nd & 3rd

Genus Atypopenaeus

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal margin only

Antennula penduncle - parapenaeid spine absent

Pereopods - exopod on 2 to 5 present

Thoracic segment - pleurobranch absent on penultimate segment

Pereopod - exopods on 2 to 4 present

Carapace longitudinal suture short

Pereopods - epipod present on 3rd pereopods

Genus Trachypenaeus

Carapace without lateral keels

Mandible cutting protion short, massive

Rostrum toothed on dorsal margin only

Antennula penduncle - parapenaeid spine absent

Pereopods - exopod on 2 to 5 present

Thoracic segment - pleurobranch absent on penultimate segment

Carapace - longitudinal suture usually long

Pereopods -epipode absent on 3rd pereopode

Genus Parapenaeopsis

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