nigromarginatus, Procatopus (Andreasenius) Clausen [H. S.] 1959:275, Figs. 5-6 [Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening, Kjøbenhavn v. 121; ref. 843] Small stream, Cameroon Lowland High Forest, 27 miles west of Mamfe, a few miles east of Eyomojok, Cameroon. Holotype: ZMUC P353885 [ex W. Afr. Exped. 514]. Paratypes: BMNH 1962.5.3.8.11 (4), UI (2), West Afr. Exp. 515, ZMB 21535 (4), ZMUC P353886 (1, allotype), ZMUC uncat. (45). Type catalog: Nielsen 1974:56 [ref. 9588], Paepke & Seegers 1986:154 [ref. 19981]. •Synonym of Procatopus aberrans Ahl 1927 -- (Wildekamp et al. 1986:193 [ref. 6198], Romand in Lévêque et al. 1992:618 [ref. 21590], Lazara 2001:259 [ref. 25711]). Current status: Synonym of Procatopus aberrans Ahl 1927. Procatopodidae: Procatopodinae. Habitat: freshwater.