Fig. 2
From: Geographical variation in shell shape of the pod razor shell Ensis siliqua (Bivalvia: Pharidae)
Location and description of the landmarks in the inner surface of the shell of Ensis siliqua: (1) ventralmost point of the pallial sinus, (2) centralmost point (maximum curvature) of the pallial sinus, (3) dorsalmost point of the pallial sinus, (4) posteriormost point of the posterior adductor muscle, (5) anteriormost point of the posterior adductor muscle, (6) dorsalmost point of the posterior limit of the anterior adductor muscle, (7) ventralmost point of the posterior limit of the anterior adductor muscle, (8) ventral anterior limit of the pallial line, (9) dorsal anterior limit of the pallial line, (10) dorsalmost point of the anterior margin of the valve (pseudo-landmark), (11) ventralmost point of the anterior margin of the valve (pseudo-landmark)