B. aculeata d'Orbigny, 1826, Campos Basin, Brazil |
B. echinata d'Orbigny, 1826, Campos Basin, Brazil |
B. elongata, central Adriatic coast/Italy |
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B. elongata, central Adriatic coast/Italy |
B. marginata, central Adriatic coast/Italy |
B. marginata, central Adriatic coast/Italy |
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B. marginata, central Adriatic coast/Italy |
B. mexicana Cushman 1922, Campos Basin, Brazil |
B. striata d'Orbigny, 1839, Campos Basin, Brazil |
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B. aculeata, Torrente Stirone/Italy |
B. aculeata, Torrente Stirone/Italy |
B. aculeata, Torrente Stirone/Italy |
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B. costata, Nussdorf/Austria |
juvenile B. elongata, Calvert Cliffs, USA |
juvenile B. elongata, Calvert Cliffs, USA |
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adult B. elongata, Calvert Cliffs, USA |
adult B. elongata, Calvert Cliffs, USA |
B. elongata (d'Orbigny, 1826) Gram, Claypit, Denmark |
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B. elongata (d'Orbigny, 1826) Gram, Claypit, Denmark |
B. marginata d'Orbigny, 1826 Stade, Northern Germany |
B. sp., Gozo/Malta |
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B. elongata, Kobrow/Germany |
B. elongata, Kobrow/Germany |
B. elongata, Kobrow/Germany |
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B. elongata, Lyby, Limfjord, Denmark |
B. elongata, Lyby, Limfjord, Denmark |
B. sp., Kobrow/Germany |
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