Keywords: Natural History - Mollusca - Gaping Bulla.png En Illustration from Natural History Mollusca 1854 p 147 - The Gaping Bulla Philine aperta http //www archive org/details/naturalhistorymo00goss 1854 creator Philip Henry Gosse PD-old-100-1923 1888 Natural History - Mollusca Philinidae |