Summary: | FIGURE 1. Astrotholus antarcticus (Fisher 1940) CASIZ 175766. A. Abactinal. B. Closeup of abactinal surface showing plates and granules. C. USNM 1573471, Distal armtip abactinal-lateral view showing superomarginal plates. D. Oral view, close showing oral plates/spines, furrow spines, accessories. E. Oral view showing general morphology. Astrotholus antarcticus (Fisher, 1940). F. Actinal-lateral view showing actinal plates, spinelets, inferomarginal plates. Published as part of Mah, Christopher L., 2023, New Genera, Species, and observations on the biology of Antarctic Valvatida (Asteroidea), pp. 1-88 in Zootaxa 5310 (1) on page 11, DOI:10.11646/zootaxa.5310.1.1, http://zenodo.org/record/8090240
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