Chitonaster cataphractus Sladen 1889 ...

• Main Author: Mah, Christopher L.
• Format: Text
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Echinodermata; Asteroidea; Valvatida; Goniasteridae; Chitonaster; Chitonaster cataphractus; Antarc*; Antarctic; Thurston Island
• Online Access: https://dx.doi.org/10.5281/zenodo.6184329; https://zenodo.org/doi/10.5281/zenodo.6184329

Chitonaster cataphractus Sladen, 1889 (Figure 4 A–E) Sladen, 1889: 283; A.M. Clark, 1962: 22; 1992: 250; A.M. Clark, 1993: 250 (as C. cataphractus) Distribution. South Sandwich and Thurston Island, Ellsworth Land to 62˚26’S, 95˚44’E (type locality), 3612– 5350 m. Comments and distinctions from other species. Chitonaster cataphractus is distinguished from the other species of Chitonaster based on the single spines on each abactinal and superomarginal plate, the superomarginal and inferomarginal spines in series, the absence of pedicellariae, the elongate arms and relatively small disk (Fig. 4 A–E). Other characters, such as the relatively small abactinal plates and the absence of papulae, are shared between C. cataphractus, C. felli, and C. johannae. These all appear to be characters present in taxa collected from abyssal depths (2000–5000 m). Original type specimens and newly collected specimens of C. cataphractus show disparity between small and large sized specimens as well as the number of spines on the ... : Published as part of Mah, Christopher L., 2011, Taxonomy of high-latitude Goniasteridae (Subantarctic & Antarctic): one new genus, and three new species with an overview and key to taxa, pp. 1-48 in Zootaxa 2759 on pages 11-13, DOI: 10.5281/zenodo.276783 ...