royauxi, Microthrissa Boulenger [G. A.] 1902:26, Pl. 8 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 2 (fasc. 2); ref. 562] Ubangi River at Banzyville, Zair [Democratic Republic of Congo], about 4°18'N, 21°11'E. Syntypes: BMNH 1901.12.26.13. (1), MRAC 1233-34 (1, 1), 1256 (1). •Valid as Microthrissa royauxi Boulenger 1902 -- (Whitehead 1985:152 [ref. 5141], Gourène & Teugels 1988:362 [ref. 16242], Gourène & Teugels 1990:136 [ref. 16771], Poll & Gosse 1995:127 [ref. 24781], Munene et al. 2021:21 [ref. 39283], Delling et al. 2024:7 [ref. 41044]). Current status: Valid as Microthrissa royauxi Boulenger 1902. Dorosomatidae. Distribution: Western-central Africa: Congo River basin. Habitat: freshwater.