Molecular evidence for multiple introductions of the banded grove snail (Cepaea nemoralis) in North America

DNA barcode data hosted in the Data Portal of the Barcode of Life Data Systems. Records consist of specimen metadata, specimen images, and sequence data.本数据集为存储于生命条形码数据系统（Barcode of Life Data Systems）数据门户内的DNA条形码（DNA barcode）数据，其每条记录均包含样本元数据、样本图像与序列数据。