Pelagic organisms, floating on the surface of the open sea, propelling themselves feebly by the pumping movements of the umbrella produced by contraction of the sub-umbral musculature, and capturing their prey with their tentacles. [Please select]
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Casi al mismo instante, luego que el marqués hubo atravesado el umbral, fue cerrada la puerta, y el pobre tío Paciencia no pudo ver nada más. [Please select]
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