PLATE 17. 
Page 
Fig. 1 & 2. Strophomena woolworthana.. 192 
1 a. Ventral valve of an individual of medium size. 
1 b. Dorsal valve of a larger individual, showing the area of the opposite valve and the closed 
foramen. 
1 c. Ventral valve of the same. 
1 d. Profile view of the same. 
1 e. Ventral valve of a large individual. 
1 /. View of area of 1 e. 
1 g. Cardinal view of an entire individual, showing the area of the ventral valve, and the 
convexity of the dorsal valve. 
1 h, i, k, 1. Interior of the ventral valves of several individuals of different size, and showing 
some variety in form of the muscular impressions. 
1 m. A cast of the ventral valve. 
1 n. o. Interior of dorsal valves, showing the cardinal processes, with some difference in the 
strength of the muscular impressions and proportional length of the hinge-line. 
1 p, r. Cardinal view of ventral valve, showing the cardinal processes and the same enlarged. 
1 s, t. Enlargement and profile of the striae. 
2 a, b, c. Casts of the interior of the dorsal valves of several individuals. 
