Penaeus (Farfantepenaeus) Burukovsky, 1972

Chan, Tin-Yam, 2023, New subgeneric names for the most commercially important shrimp genus Penaeus Fabricius, 1798 (Crustacea, Decapoda, Penaeidae), ZooKeys 1141, pp. 29-40 : 29

Penaeus (Farfantepenaeus) Burukovsky, 1972

Type species.

Penaeus brasiliensis var. aztecus Ives, 1891.

Gender of subgenus.

Masculine.

Diagnosis.

Rostrum usually bearing 2 ventral teeth. Median sulcus at postrostral carina generally distinct, long. Adrostral sulcus extending to near posterior margin of carapace. Gastrofrontal carina distinct, with posterior end not turning anteriorly. Cervical carina with dorsal end a distance from dorsal carapace. Hepatic carina distinct. First pereiopod with strong ischial spine. Fifth pereiopod bearing exopod. Sixth abdominal somite with distinct dorsolateral sulcus. Telson without lateral spines. Thelycum closed.

Species included.

Penaeus (Farfantepenaeus) aztecus Ives, 1891, Penaeus (Farfantepenaeus) brasiensis Latreille, 1817, Penaeus (Farfantepenaeus) brevirostris Kingsley, 1878, Penaeus (Farfantepenaeus) californiensis Holmes, 1900, Penaeus (Farfantepenaeus) duorarum Burkenroad, 1939, Penaeus (Farfantepenaeus) isabelae Tavares & Gusmão, 2016, Penaeus (Farfantepenaeus) notialis Pérez Farfante, 1967, Penaeus (Farfantepenaeus) paulensis Pérez Farfante, 1967, Penaeus (Farfantepenaeus) subtilis Pérez Farfante, 1967.

Remarks.

This subgenus together with Penaeus (Litopenaeus) are often called the American Penaeus . Morphologically these two subgenera are markedly different from each other and had long been thought to be evolutionary far apart (see Burkenroad 1934; Kubo 1949; Pérez Farfante 1969; Dall et al. 1990; von Sternberg and Motoh 1995; Pérez Farfante and Kensley 1997; von Sternberg 1997). They are, however, very closely related genetically (see Yang et al. 2023). At present only one morphological character, the sixth abdominal somite with dorsolateral sulcus, is found to separate the American Penaeus from other congeneric species. Recent molecular analysis has suggested that P. (Farfantepenaeus) notialis , originally described as a subspecies of P. (Farfantepenaeus) duorarum , may not be distinct at the species level ( Timm et al. 2019).