FAMILY : PENAEIDAE

Carapace with lateral keels

Mandible cutting portion elongate

Genus Funchalia

Rostrum toothed on dorsal and ventral margin

Carapace without lateral keels

Mandible cutting protion short, massive

Genus Penaeus

Rostrum shorter than the eyes

Rostrum toothed on dorsal margin only

Carapace without lateral keels

Longitudinal suture absent on carapace

Mandible cutting protion short, massive

Telson tridentate with fixed spine on each side of tip

Antenullar peduncle - parapenaeid spine absent

Perepods - basial spine present on 1st

Pereopods - exopod on 2 to 5 present

Thoracic segment - pleurobranch absent on penultimate segment

Telson armed with lateral spine

Genus Trachypenaeopsis

Rostrum longer than the eyes

Rostrum toothed on dorsal margin only

Carapace without lateral keels

Longitudinal and transverse sutures present on carapace

Mandible cutting protion short, massive

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

Telson tridentate with fixed spine on each side of tip

Genus Parapenaeus

Rostrum longer than the eyes

Rostrum toothed on dorsal margin only

Carapace without lateral keels

Longitudinal or transverse sutures absent on carapace

Mandible cutting protion short, massive

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

Last thoracic segment - single arthrobranch present

Telson tridentate with fixed spine on each side of tip

Genus Penaeopsis

Rostrum longer than the eyes

Rostrum toothed on dorsal margin only

Carapace without lateral keels

Longitudinal or transverse sutures absent on carapace

Mandible cutting protion short, massive

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

Male petasma asymmetrical

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

Telson tridentate with fixed spine on each side of tip

Genus Metapenaeopsis

Rostrum toothed on dorsal margin only

Carapace without lateral keels

Mandible cutting protion short, massive

Antennula penduncle - parapenaeid spine absent

Pereopods - exopods on 2 to 5 absent

Telson without fixed spine

Genus Macropetasma

Rostrum toothed on dorsal margin only

Carapace without lateral keels

Mandible cutting protion short, massive

Antennula penduncle - parapenaeid spine absent

Pereopod - exopods on 2 to 4 present

Thoracic segment - pleurobranch present on penultimate segment

Genus Metapenaeus

Rostrum toothed on dorsal margin only

Carapace without lateral keels

Longitudinal suture absent on carapace

Mandible cutting protion short, massive

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

Pereopods -basial spine present on 2nd & 3rd

Telson unarmed

Genus Atypopenaeus

Rostrum toothed on dorsal margin only

Carapace without lateral keels

Carapace longitudinal suture short

Mandible cutting protion short, massive

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

Pereopods - epipod present on 3rd

Genus Trachypenaeus

Rostrum toothed on dorsal margin only

Carapace without lateral keels

Carapace - longitudinal suture usually long

Mandible cutting protion short, massive

Antennula penduncle - parapenaeid spine absent

Pereopods - exopod on 2 to 5 present

Pereopods -epipode absent on 3rd pereopode

Thoracic segment - pleurobranch absent on penultimate segment

Genus Parapenaeopsis

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