Clypeaster eurychorius H.L. Clark, 1925c, H. L. Clark, 1925

Filander, Zoleka & Griffiths, Charles, 2017, Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa, Zootaxa 4296 (1), pp. 1-72: 50-51

publication ID

https://doi.org/10.11646/zootaxa.4296.1.1

publication LSID

lsid:zoobank.org:pub:EFE86EDD-D170-4D97-87D9-3125400713EC

persistent identifier

http://treatment.plazi.org/id/03FE87F0-FF96-FFEE-FF57-F9DDFAB6FE43

treatment provided by

Plazi

scientific name

Clypeaster eurychorius H.L. Clark, 1925c
status

 

Clypeaster eurychorius H.L. Clark, 1925c  

Fig. 56 View FIGURE 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 View FIGURE 2 . Pl. XXXI, Figs 2 View FIGURE 2 , 3 View FIGURE 3 . Pl. XXXII, Fig. 3 View FIGURE 3 . Pl. XXXIII, Fig. 2 View FIGURE 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.

Kingdom

Animalia

Phylum

Echinodermata

Class

Echinoidea

Order

Clypeasteroida

Family

Clypeasteridae

Genus

Clypeaster

Loc

Clypeaster eurychorius H.L. Clark, 1925c

Filander, Zoleka & Griffiths, Charles 2017
2017
Loc

Clypeaster (Stolonclypus) eurychorius: Mortensen, 1948d : 94

Mortensen 1948: 94
1948
Loc

Clypeaster eurychorius

Schultz 2009: 539
Clark 1976: 241
Clark 1924: 10
1924
Loc

Clypeaster humulis:

Clark 1925: 149
Clark 1923: 392
1923