Stereocidaris squamosa Mortensen, 1928b, Mortensen, 1928

Filander, Zoleka & Griffiths, Charles, 2017, Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa, Zootaxa 4296 (1), pp. 1-72: 17-18

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-FFB7-FFCD-FF57-F8CFFB01FDE4

treatment provided by

Plazi

scientific name

Stereocidaris squamosa Mortensen, 1928b
status

 

Stereocidaris squamosa Mortensen, 1928b  

Fig. 13 View FIGURE 13 A –C.

Stereocidaris squamosa Mortensen, 1928a: 245   –247. Pl. XX, Figs 4–6 View FIGURE 4 View FIGURE 5 View FIGURE 6 , Pl. LXX, Fig. 7 View FIGURE 7 . Pl. LXXX, Figs 10–16 View FIGURE 10 View FIGURE 11 View FIGURE 12 View FIGURE 13 View FIGURE 14 View FIGURE 15 View FIGURE 16 ; Mortensen, 1928b: 70; Mortensen, 1932b: 151; Clark & Courtman-Stock, 1976: 218; Schultz, 2011: 1060, Figs 1844–1845.

Material examined. MBC-A077750.

Identification. Has a less aborally elevated test than Stereocidaris excavata   , greenish apical disc ( Mortensen 1928b), and gonopores centrally positioned; primary spines with broad tips, with about 15 longitudinal ridges, yellowish, slightly tapered, dark line towards neck of spines; naked lines along test plates.

Global maximum size. Maximum test diameter 47 mm.

Global distribution. East coast region of South Africa, Tanzania, Saya da Malha Bank, at 270–374 m depth ( Mortensen 1928b; Clark & Courtman-Stock 1976).

Remarks. Differs from the two endemic species S. capensis   and S. excavata   in primary spines and genital plates, respectively. Both S. capensis   and S. squamous   have slightly elevated genital plates with distally positioned gonopores, but differ in the number of longitudinal ridges on the spine; the latter having about 15 and the former 12 ridges. Differs from S. excavata   in raised greenish apical disc, S. excavata   having a sunken one.

Kingdom

Animalia

Phylum

Echinodermata

Class

Echinoidea

Order

Cidaroida

Family

Cidaridae

Genus

Stereocidaris

Loc

Stereocidaris squamosa Mortensen, 1928b

Filander, Zoleka & Griffiths, Charles 2017
2017
Loc

Stereocidaris squamosa

Schultz 2011: 1060
Clark 1976: 218
Mortensen 1932: 151
Mortensen 1928: 245
Mortensen 1928: 70
1928