Locomotion and Functional Spine Morphology of the Heart Urchin Brisaster fragilis, with Comparisons to B. latifrons

Figure 7

Dorsal supportive spines of Brisaster fragilis. ((a) and (b)) Stereomicroscope photograph; ((c) and (d)) SEM micrographs.

(a)

(b)

(c)

(d)