. Bulletin of the British Museum (Natural History). FRESHWATER GASTROPOD MOLLUSCS 301. 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: ., 1962, boo, bookauthorbritishmuseumnaturalhistory, bookcentury1900