Four new species of Schilbetrema (Monogenea: Dactylogyridae) from Schilbe spp. (Siluriformes: Schilbeidae) in the Sanaga River (Sanaga Basin) and Boumba River (Congo Basin) in Cameroon. Zoologia, 42, Jun 27 2025: 1-12. 6 [Zoological Record Volume 162]