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Nanometra johnstoni John, 1939, holotype, Natural History Museum, London (NHM) cat. no. 1948.1.7.193, entire specimen.
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Nanometra johnstoni John, 1939, holotype, Natural History Museum, London (NHM) cat. no. 1948.1.7.193, lateral view, close-up.
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Nanometra johnstoni John, 1939, holotype, Natural History Museum, London (NHM) cat. no. 1948.1.7.193, proximal pinnules.
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Nanometra johnstoni John, 1939, holotype, Natural History Museum, London (NHM) cat. no. 1948.1.7.193, cirri
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Nanometra johnstoni John, 1939, holotype, Natural History Museum, London (NHM) cat. no. 1948.1.7.193, cirrus tip.