Figure 3 in The global freshwater bivalve checklist's extension: Freshwater occurrences and phylogenetic position of Galatea clams from West Africa (Venerida: Donacidae)

Figure 3. Shells of Galatea schwabi from Sanaga River, Cameroon. (A-B) Topotypes RMBH biv800, Mouanko (lower reaches, slightly brackish section). (C-D) Specimens RMBH biv801, Monatélé (middle reaches, freshwater section). Red arrows show well-developed muscle attachment scars. Scale bar = 10 mm. (Photos: Artem A. Lyubas).