Clypeaster eurychorius H. L. Clark 1925
| Main Authors: | Filander, Zoleka, Griffiths, Charles |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2017
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6022863 |
Daftar Isi:
- Clypeaster eurychorius H.L. Clark, 1925c Fig. 56 A–D. Clypeaster humulis: H.L. Clark, 1923: 392; H.L. Clark, 1925a: 149. Clypeaster eurychorius H.L. Clark, 1924: 10 –11. Pl. III; Clark & Courtman-Stock, 1976: 241; Schultz, 2009: 539, Figs 913– 916. Clypeaster (Stolonclypus) eurychorius: Mortensen, 1948d: 94 –96. Pl. XXX, Fig. 2. Pl. XXXI, Figs 2, 3. Pl. XXXII, Fig. 3. Pl. XXXIII, Fig. 2. Material examined. MBC-A 022261; MBC-A 022286; MBC-A 022290; MBC-A023306; A22330; A28431; A23092. Identification. Distinguished from other Clypeaster species within the region in having a rounded pentagonal test, flat except at elevated petal area, margin thick. Petals short, opened distally, pore-zones narrow, interporiferous zones wider. Primary tubercles sparse, miliaries smaller than primaries. Primary spines small, slender, longer towards mouth; miliaries slender, with thick tip. Preserved specimens brownish-green; denuded test uniformly yellowish-white. Global maximum size. Maximum test length 145 mm. Global distribution. South and East coast regions of South Africa, northward to Pemba Strait (Tanzania) and off Mauritius, at 125–320 m depth (Mortensen 1948d; Schultz 2009). Remarks. Deep-water species, burrows in uppermost layer of sediment, where it feeds on organic particles.
- Published as part of Filander, Zoleka & Griffiths, Charles, 2017, Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa, pp. 1-72 in Zootaxa 4296 (1) on pages 50-51, DOI: 10.11646/zootaxa.4296.1.1, http://zenodo.org/record/843325