Over a million H. ulvae live on the wet sand in this image of a small part of the mouth of the Dee Estuary, Cheshire. (Random sample had 4737 / sq. metre) When the water dries up they retreat below the sand surface. All examined had deep shell sutures.
Over a million H. ulvae live on the wet sand in this image of a small part of the mouth of the Dee Estuary, Cheshire. (Random sample had 4737 / sq. metre) When the water dries up they retreat below the sand surface. All examined had deep shell sutures.
Over a million H. ulvae live on the wet sand in this image of a small part of the mouth of the Dee Estuary, Cheshire. (Random sample had 4737 / sq. metre) When the water dries up they retreat below the sand surface. All examined had deep shell sutures.
