Alytoleucon Watling, 1991

Brito, Ayrton Do Ramo & Serejo, Cristiana Silveira, 2023, Leuconidae Sars, 1878 (Crustacea: Cumacea) from the southwestern Atlantic, filling the distribution gap along the Brazilian coast, Zootaxa 5383 (2), pp. 101-134 : 106

publication ID	https://doi.org/ 10.11646/zootaxa.5383.2.1
publication LSID	lsid:zoobank.org:pub:996315A6-A209-4DF7-B59C-0B7662741F37
DOI	https://doi.org/10.5281/zenodo.10391335
persistent identifier	https://treatment.plazi.org/id/03FA634C-FFF6-FFCD-4FDD-9384A4BDF8F6
treatment provided by	Plazi
scientific name	Alytoleucon Watling, 1991
status

Treatment

Subgenus Alytoleucon Watling, 1991 View in CoL

Diagnosis. Branchial syphon extending as long as or slightly longer than pseudorostrum. Antenna 1 accessory flagellum rudimentary. Pereonite 5 without ventral hooks, mature males may presentpenial lobes. Uropodal endopod terminal setae fused to article (modified from Watling, 1991).

Type species: Leucon jonesi Bishop, 1982 View in CoL

Remarks. The presence of penial lobes in the family Leuconidae is common, and can be found in species of Afroleucon Mühlenhardt-Siegel, 2011 , Kontiloleucon Gerken, 2016 , Phalloleucon Mühlenhardt-Siegel, 2008 and in the species Eudorella redacticruris Watling and McCann, 1997 . In the present study it was noticed the presence of penial lobes in Leucon (Alytoleucon) . Mature males of Leucon (Alytoleucon) rhuanae n. sp. present a small tube-like pair of penial lobes similar to Afroleucon enigmatica Mühlenhardt-Siegel, 2011 . Bishop (1982a) has already mentioned penial lobes in mature males of L. (A) jonesi . Penial lobes might be present in all mature males of Leucon (Alytoleucon) , but that needs further investigation.