200 



15. Lucina despectans, Tate. Muddy Creek. Young shell, 



much enlarged. 



16. Lucina despectans, Tate. An older shell, enlarged. 



17. Carditella inultilainella, Tate. Muddy Creek. Enlarged. 



18. Cardita solida, Tate. Muddy Creek. Enlarged. 



19. Tellina equilatera, Tate. Muddy Creek. An adult shell. 



20. Carditella polita, Tate. Muddy Creek. Ery, much en- 



larged. 



21. Carditella polita, Tate. An adult shell, enlarged. 



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