New Zealand Seashore

DSC_8678 A comparison of the apertures of the two 'white' rock snails. White rock snail (Dicanthais orbita) left, and White whelk (Haustrum lacunosum) right.

DSC8678comparisonapertureundersideWhite rock snailDicanthaisorbitaWhite whelkHaustrumlacunosum