FIGURE 4. Chitonaster cataphracus USNM 1122200 A. Abactinal surface. USNM 1122198. B. Oral surface. C. Dorsolateral surface showing marginal plate series. D in Taxonomy of high-latitude Goniasteridae (Subantarctic & Antarctic): one new genus, and three new species with an overview and key to taxa - Mah, Christopher L. (2011)