Pleurocrypta dubia (Nierstrasz and Brender à Brandis, 1931)

Boyko, Christopher B. & Williams, Jason D., 2023, Nomenclatural and taxonomic changes in parasitic isopods (Isopoda: Epicaridea) including two new families and note on the questionable association between monogeneans and bopyrids, Zootaxa 5258 (3), pp. 251-269 : 259

Pleurocrypta dubia (Nierstrasz and Brender à Brandis, 1931) n. comb.

= Parapseudione dubia Nierstrasz and Brender à Brandis, 1931

Distribution: Known only from “El Araish ( Marokko). 30–35 Fd.” (= Larache, Morocco, 55-64 m) (Nierstrasz & Brender à Brandis 1931).

Host: “ Galathea sp. ” (Nierstrasz & Brender à Brandis 1931).

Remarks: Bourdon (1968) suggested that Parapseudione dubia might be a synonym of Pleurocrypta microbranchiata G.O. Sars, 1898 . The main characters used by Nierstrasz & Brender à Brandis (1931) to distinguish Parapseudione from other genera were the female having the first four pleopods biramous and the fifth uniramous; Bourdon (1968: 273) showed that mature Pleurocrypta microbranchiata females varied in having three to five pairs of biramous pleopods. Given that the description and figures of the holotype of Parapseudione dubia are incomplete and the lack of an accompanying male, we refrain from synonymizing P. dubia with any of the currently recognized species in Pleurocrypta but we do synonymize the two genera.