Figure 8 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 8. Stirpulina ramosa. The internal structure of the anterior tube in the region around the left shell valve embedded within it. AA, anterior adductor muscle scar; APR, anterior pedal retractor muscle scar; AVG, anterior (left) valve growth; CL, clasts; IL, internal lip of the adventitious tube; JS, juvenile shell; PA, posterior adductor muscle scar; PE, periostracum; PEM, pallial elevator muscle scar; PL, pallial line; PLE, sutured pleat in tube; PPR, posterior pedal retractor muscle scar; PS, pallial sinus; PVG, posterior (left) valve growth.