Complex sentence: The holotype, a specimen probably collected in Key West, was subsequently lost, and so the American biologist Henry Augustus Pilsbry redescribed the species in 1946, using a specimen from Stock Island.
Split into simpler sentences: The holotype, a specimen probably collected in Key West, was subsequently lost. More than a hundred years later, in 1946, the American biologist Henry Augustus Pilsbry redescribed the species using a specimen from Stock Island.