Figure 19. Stirpulina ramosa. A in A cadaver unearthed: the anatomy of the Japanese living fossil Stirpulina ramosa (Bivalvia: Anomalodesmata: Clavagellidae) - the unique specimen in the collections of Emperor Shōwa

Figure 19. Stirpulina ramosa. A, the anus as seen from the dorsal aspect. B, the anal opening as seen from the posterior aspect. C, the paired visceral ganglia beneath the anterior end of the anal sheath, as seen from the ventral aspect. AN, anus; ANN, anal nerve; AP, anal papilla; CAN, ctenidial axis nerve; CP-VG, cerebro-pleural – visceral ganglia connective; SN, siphonal nerve; VG, visceral ganglia.