abacinum, Aphyosemion Huber [J. H.] 1976:79, Fig. 1 [Revue française d'Aquariologie Herpétologie v. 3 (no. 3); ref. 7339] 30 kilometers north of Mekambo, region de l'Ivindo, Gabon. Holotype: MNHN 1978-0137. Paratypes: MNHN 1978-138 (11), 1981-874 (11), MZN (orig. 19). •Valid as Aphyosemion abacinum Huber 1976 -- (Wildekamp 1993:75 [ref. 26378], Lazara 2001:8 [ref. 25711], van der Zee et al. 2007:173 [ref. 30034], Fermon et al. 2022:252 [ref. 39448]). •Valid as Diapteron abacinum (Huber 1976) -- (Wildekamp et al. 1986:242 [ref. 6198], Seegers 1997:16 [ref. 23895], van der Zee et al. 2018:88 [ref. 35718], Eberl 2022: 244 [ref. 39346]). Current status: Valid as Diapteron abacinum (Huber 1976). Nothobranchiidae. Distribution: Western-central Africa: Gabon endemic. Habitat: freshwater.