Peyssonnelia dubyi P. Crouan & H. Crouan, 1844: 368, pl. 11: figs. 6–8 (`Peyssonelia') (type locality: near Brest, Finistère, France).—Kalugina-Gutnik, Perestenko, & Titlyanova, 1992: 18 (table 1).— Titlyanova, Perestenko, & Kalugina-Gutnik, 1992: 43.
Taxonomic synonym (fide Denizot, 1968: 112):
* Cruoriella armorica P. Crouan & H. Crouan var. de-zwaanii Weber-van Bosse, 1921: 281 (`de zwaanii') (type locality: Nias Island, Sumatra, Indonesia).—De Toni, 1924: 584.
INDIAN OCEAN DISTRIBUTION: Indonesia (Sumatra), Seychelles.
Note: The original varietal epithet, de zwaanii, was corrected to de-zwaanii by Denizot (l.c.). in accordance with Arts. 23.1 and 60.9.