Figure 18 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 18. Stirpulina ramosa. The course of the intestine in the visceral mass, heart and kidney. AA, anterior adductor muscle; AN, anus; APR, anterior pedal retractor muscle; CA, ctenidial axis; CSS/MG, conjoined style sac and mid gut; DD, digestive diverticulae; F, foot; H, heart; HG, hind gut; ID, inner demibranch; K, kidney; M, mouth; MG, mid gut; O, oesophagus; 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; ST, stomach; T, testis; VD, vas deferens; VM, visceral mass.