PLATE XXI. 
Fie. 
1, a, 6. Cardita corpusculum, 8. Wood, p. 153. Barton. 
2, a, 6. Astarte modicella, S. Wood, p. 158. Stubbington. 
3: Cardita alticostata, S. Wood, p. 143. Highgate. 
4. , simplex. Edwards, p. 151. Roydon. 
Ds @ », planicosta. 4. juv. ¢. var. angusticardo. d. var. laticardo, p. 
Bracklesham. 
6, a,4. Verticordia formosa, 8. Wood, py. 139. Whetstone. 
dis propinqua, S. Wood, p. 140. Highgate. 
8, a, b. a obliquata, Edwards, py. 139. Bracklesham. 
ON aos Es sulcata, J. Sowerby, p. 140. Highgate. 
10. Cardita imbricata, Lamarck, p. 147. Bracklesham. 
Ie a » oblonga (var. trapezoidalis), p. 149. High Cliff. 
12. » simplex, Edwards, y. 151. High Cliff. 
150. 
