Note 21 — II. FEBRUARY.
Reading edition
Purpura lapillus, sometimes known as the Dog-winkle. Three individuals, representing the varieties of colour, are seen in the middle of Plate V., and a cluster of their egg-capsules in the lower left corner.
Reading edition
Purpura lapillus, sometimes known as the Dog-winkle. Three individuals, representing the varieties of colour, are seen in the middle of Plate V., and a cluster of their egg-capsules in the lower left corner.