| Fig. | | Page | | SURIRELLA | | 1 | Surirella striatula Turpin | 125 | | 2 | Surirella anceps Lewis | 128 | | 3 | Surirella intermedia Lewis | 128 | | 4 | Surirella arctissima A. S. | 128 | | 5-6 | Surirella delicatissima Lewis | 128 | | 7 | Surirella intermedia Lewis forma minor? | 128 | | CYMATOPLEURA | | 8-9 | Cymatopleura solea (BrÉb.) Wm. Sm. | 129 | | | | Fig. | | Page | | SURIRELLA | | 1 | Surirella striatula Turpin | 125 | | 2 | Surirella anceps Lewis | 128 | | 3 | Surirella intermedia Lewis | 128 | | 4 | Surirella arctissima A. S. | 128 | | 5-6 | Surirella delicatissima Lewis | 128 | | 7 | Surirella intermedia Lewis forma minor? | 128 | | CYMATOPLEURA | | 8-9 | Cymatopleura solea (BrÉb.) Wm. Sm. | 129 | |
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