Species that contain: Petersius and ansorgii [ 2 ] records

ansorgii, Petersius Boulenger [G. A.] 1910:543 [Annals and Magazine of Natural History (Series 8) v. 6 (no. 36); ref. 577] Bengo River at Cabiri and Lake Kilungu, Angola. Lectotype: BMNH 1910.11.28.71 (65 mm, male). Paralectotypes: ANSP 37950-55 (6) Bengo R.; BMNH 1910.11.28.72-80 (9), 1910.11.28.81-85 (5); NMW 56565 (8); USNM 86614 [ex BMNH 1910.11.28.86] (1); ZMB 18207 (6) Bengo. Type catalog: Böhlke 1984:43 [ref. 13621], Vari & Howe 1991:33 [ref. 19022], Zarske 2011:64 [ref. 31375]. Lectotype selected by Poll 1967:118 [ref. 3529]. •Valid as Phenacogrammus ansorgii (Boulenger 1910) -- (Géry 1995:58 [ref. 22057]). •Valid as Nannopetersius ansorgii (Boulenger 1910) -- (Paugy 1984:178 [ref. 6183], Poll & Gosse 1995:145 [ref. 24781], Paugy & Schaefer 2007:407 [ref. 30022], Zarske 2011:64 [ref. 31375], Skelton 2019:226, 233 [ref. 36564], Fermon et al. 2022:149 [ref. 39448], Walsh et al. 2022:[4] [ref. 39281]). Current status: Valid as Nannopetersius ansorgii (Boulenger 1910). Alestidae. Distribution: Western and central Africa: Equatorial Guinea, Gabon, Democratic Republic of Congo and Angola. Habitat: freshwater.

ubalo, Petersius Boulenger [G. A.] 1910:544 [Annals and Magazine of Natural History (Series 8) v. 6 (no. 36); ref. 577] Rumango and Kilunda, Angola. Syntypes: ANSP 37917-22 (6); BMNH 1910.11.28.87-92 (6) Rumango, 1910.11.28.93-100 (8) Kilunda; ZMB 18208 (7) Rumango. Type catalog: Böhlke 1984:55 [ref. 13621], Zarske 2011:67 [ref. 31375]. •Synonym of Phenacogrammus ansorgii (Boulenger 1910) -- (Géry 1995:58 [ref. 22057], Zarske 2011:67 [ref. 31375]). •Synonym of Nannopetersius ansorgii (Boulenger 1910) -- (Paugy 1984:178 [ref. 6183]). Current status: Synonym of Nannopetersius ansorgii (Boulenger 1910). Alestidae. Habitat: freshwater.