Figure. Areolae of C. glacialis. A- Dorsal view of small C. glacialis showing rows of areolae. Arrow points to one areolae. B- Photomicrograph of the surface component of one areola. The center is white surrounded by a dark ring. C- Photomicrograph with skin cut showing the surface ring of an areola (tiny white ring at tip of arrow), and a deeper patch of diffuse dark pigment that lies well beneath each surface structure.Photographs by R. Young; specimens collected by Craig Smith.
Figure. Some of the color variation in in C. glacialis. The upper picture is a preserved animal and the lower two are living but somewhat damaged animals. Note the two white spots on either side of the eye. The areolae are not visible in this larger animal (arrows in upper photograph). The lower left photo shows two animals with slightly different color hues and the lower right shows the very different color of the dorsal and ventral surface which often is not apparent after fixation.Top photograph by R. Young; specimen collected by Craig Smith. Bottom photographs by M. Vecchione.