The genus has been reorganised following a proposition of Pérez Farfante and Kensley based on morphological differences, in particular the genital characteristics of these animals,[1] although this revision has not been universally accepted.[2] Following the revision, many species formerly in the genus Penaeus (members of which are listed to the right) have been reassigned to new genera in the familyPenaeidae: Farfantepenaeus, Fenneropenaeus, Litopenaeus, and Marsupenaeus.[1] The following table gives an overview:
^ abIsabel Pérez Farfante; Brian Frederick Kensley (1997). Penaeoid and Sergestoid Shrimps and Prawns of the World: Keys and Diagnoses for the Families and Genera. Mémoires du Muséum national d'histoire naturelle. Vol. 175. Muséum national d'histoire naturelle. pp. 1–233. ISBN9782856535103.