FIGURE 5. Astrotholus phasma n in New Genera, Species, and observations on the biology of Antarctic Valvatida (Asteroidea)

FIGURE 5. Astrotholus phasma n. sp. USNM 1662096 Holotype. A. Abactinal surface. B. Side view showing surface texture, plates and other details. C. Abactinal plates cleared showing plate shapes, transition with spined plates. D. Actinal view, actinal plates cleaned, furrow and adjacent spination. E. Close up lateral view of cleaned abactinal and marginal plates near armtip. F. Further view of actinal surface, mouth and oral region. Inset: brooded eggs/embryos (each about 1.0 mm across).