Figure 17 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 17. Stirpulina ramosa. The general structure of the visceral mass and pericardium, as seen from the right side. AA, anterior adductor muscle; AN, anus; APR, anterior pedal retractor muscle; CA, ctenidial axis; DD, digestive diverticulae; F, foot; H, heart; ID, inner demibranch; K, kidney; M, mouth; OV, ovary; PA, posterior adductor muscle; PALID, point of attachment of the ascending lamella of the inner demibranch to the visceral mass; PPR, posterior pedal retractor muscle; R, rectum; T, testis; VD, vas deferens; VM, visceral mass.