Penaeus canaliculatus; Print; Penaeus is a genus of Papus; including the giant tiger prawn (P. monodon); the most important species of farmed crustacean worldwide. The genus has been reorganised following a proposition of P閞ez Farfante and Kensley based on morphological differences; in particular the genital characteristics of these animals; although this revision has not been universally accepted.Following the revision; many species formerly in the genus Penaeus have been reassigned to new genera in the family Penaeidae: Farfantepenaeus; Fenneropenaeus; Litopenaeus and Marsupenaeus.