Gymnopatagus magnus A. Agassiz & H.L. Clark, 1907c

Filander, Zoleka & Griffiths, Charles, 2017, Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa, Zootaxa 4296 (1), pp. 1-72 : 62-63

Gymnopatagus magnus A. Agassiz & H.L. Clark, 1907c

Fig. 72 A–C.

G ymnopatagus magnus: Mortensen, 1951: 447 –449. Pl. XXVI, Figs 7–9 . Pl. XXVII, Figs 8–10 . Pl. LXI, Figs 19–26 ; A.M. Clark, 1977 *: 139, 145–146; Schultz, 2010: 693, Figs 1176–1179.

Material examined. MBC-A 022887

Identification. Test heart-shaped, relatively low, highest at apical disc, sloping towards posterior end; somewhat distally closed petals. Preserved specimen yellowish, denuded test light brown. Global maximum size. Maximum test length 111 mm.

Global distribution. Japan to Indian Ocean, East coast of South Africa; at 730–2350 m depth ( Schultz 2010). Remarks. Distinguished from Spatagobrissus mirabilis by its frontal notch.

Figures

FIGURE 7. Kionocidaris striata (MBC-A 022213): A. Map showing distribution. B. Apical system of preserved specimen.

FIGURE 8. Phyllacanthus imperialis (SAMC-A 23447): A. Map showing distribution. B. Aboral view of preserved specimen.

FIGURE 9. Goniocidaris (Goniocidaris) indica: A. Map showing distribution. B. Aboral view of preserved specimen (SAMC- A 23089). C. Side view of preserved specimen (SAMC-A 28235).

FIGURE 10. Stereocidaris alcocki (SAMC-A 28229): A. Map showing distribution. B. Side view (close-up) of preserved specimen. C. Apical system of preserved specimen.

FIGURE 19. Hygrosoma petersii (SAMC-A 22219). A. Map showing distribution. B. Aboral view of preserved specimen. C. Oral view of preserved specimen.

FIGURE 20. Sperosoma biseriatum A. Map showing distribution. B. Aboral view of preserved specimen (Schultz, 2010). C. Oral view of preserved specimen (Schultz, 2010).

FIGURE 21. Tromikosoma uranus (SAMC-A 22122). A. Map showing distribution. B. view of preserved specimen. C. Oral view of preserved specimen.

FIGURE 22. Phormosoma busarium (SAMC-A 22621). A. Map showing distribution. B. Aboral view of preserved specimen. C. Oral view of preserved specimen.

FIGURE 23. Phormosoma placenta africana (SAMC- A 22250). A. Map showing distribution. B. Aboral view of preserved specimen. C. Oral view of preserved specimen.

FIGURE 24. Aspidodiadema africanum (MBC-A 022216). A. Map showing distribution. B. Side view of preserved specimen. C. Apical system of preserved specimen.

FIGURE 25. Astropyga radiata. A. Map showing distribution. B. Live adult (KwaZulu-Natal). C. Oral view of preserved specimen (SAMC-A 28211).

FIGURE 26. Chaetodiadema africanum. A. Map showing distribution. B. Aboral view of adult preserved specimen (MBC- 077779). C. Aboral view of juvenile preserved specimen (SAMC-A 23717).

FIGURE 72. Gymnapatagus magnus A. Map showing distribution. B. Aboral view of preserved specimen (Schultz, 2010 b). C. Side view of preserved specimen (Schultz, 2010).