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Mr. Webster on the Strata lying over the Chalk.
Fossils found at Harwich in Essex
| Names given by Lamarck. | Linnean names. |
| Patella ungaria | |
| – – – – lævis | |
| Patella spirorostris | – – – – fusca |
| Fissurella labiata | Patella |
| – – – – – emarginula | – – – – fissura |
| Calyptrea sinenis | – – – – sinensis |
| Eburna glabrata | Buccinum glabratum |
| – – – – | Murex corneus |
| – – – – | – – – – erinaceus |
| – – – – | – – – – contrarius |
| – – – – | Trochus sulcatus |
| – – – – | – – – – – alligatus |
| Ampullaria rugosa | |
| Natica canrena | |
| – – – — glaucina | |
| Mactra | |
| Venericardia senilis | Arca senilis |
| Lucina | Venus gallina |
| – – – | Solen siliqua |
| Pholas crispata | |
| – – –– – – | Ostrea deformis |
| Pecten plebeius | |
| – – – infirmatus | |
| Balanus |
Some of these however may belong to the lower marine blue clay.
