gravidum, Cerranipes and Cer. lunula etc. , only presented in the eastern of °E, which was just in agree-ment with the i钩梨甲藻，赛氏鸟尾藻、圆头角藻、指状角藻和新月角藻等，仅分布于°E以东、表层（0m）盐度 ．00的海域，可作为黄海暖流的指示种。