. Bulletin of the British Museum (Natural History). Fig. 24. Detail of shell layers in radial section of Platydon cancellata. H homogeneous, CL = crossed-lamellar, PM = pallial myostracum, CCL = complex Fig. 25. Radial section of both valves of Corbula gibba showing the periostracal flaps (PF) and sheets (PS) incorporated into the shell a characteristic of this family. Other letter- ing; CL = crossed-lamellar, CCL = complex crossed-lamellar, PM = pallial myostracum, L = Please note that these images are extracted from scanned page images that may have been digital

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. Bulletin of the British Museum (Natural History). Fig. 24. Detail of shell layers in radial section of Platydon cancellata. H homogeneous, CL = crossed-lamellar, PM = pallial myostracum, CCL = complex Fig. 25. Radial section of both valves of Corbula gibba showing the periostracal flaps (PF) and sheets (PS) incorporated into the shell a characteristic of this family. Other letter- ing; CL = crossed-lamellar, CCL = complex crossed-lamellar, PM = pallial myostracum, L = Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)

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Keywords: ., 1973, boo, bookauthorbritishmuseumnaturalhistory, bookcentury1900