Kionocidaris striata Mortensen, 1932b

Filander, Zoleka & Griffiths, Charles, 2017, Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa, Zootaxa 4296 (1), pp. 1-72 : 13-14

Kionocidaris striata Mortensen, 1932b

Fig. 7 A–B.

Kionocidaris striata Mortensen, 1932b: 165 –167. Pl. V, Fig. 7 . Pl. IX, Figs 4–6 . Pl. XI, Figs 3 , 9 . Pl. XII, Figs 1–2 . Pl. XIII, Figs 4 , 6–7 ; Clark & Courtman-Stock, 1976: 216; Schultz, 2011: 900, Figs 1520–1522.

Material examined. MBC-A 022213

Identification. Test somewhat high, flattened above, upper primary tubercles distinctively crenulated. Apical disc star-shaped—oculars narrowly insert, elevated, the same size as peristome, sparsely tuberculated. Primary spines thick, solid, serrated, fusiform, tapering to a simple end, encircled by scrobicular spines. Denuded test creamish in color.

Global maximum size. Maximum test diameter 27 mm.

Global distribution. Endemic to East coast region of South Africa, only record at 126 m depth ( Mortensen 1932b; Clark & Courtman-Stock 1976; Schultz 2011).

Remarks. According to Schultz (2011), Clark & Courtman-Stock (1976) referred to the type in their report and no other specimen has been recorded. This species is represented by a single Iziko Museum sample, which is the type (MBC-A 022213).

Figures

FIGURE 1. Detail of regular echinoid: upper (Stomopneustes variolaris) and lower (Stereocidaris excavata) side, showing terminology of various body parts.

FIGURE 2. Body plan of an irregular echinoid or sand dollar (Clypeaster rarispinus), showing terminology of various body parts.

FIGURE 3. The body plan of an irregular echinoids or heart urchin (Echinocardium cordatum), showing terminology of different body parts.

FIGURE 4. Tubercle types: A. perforated and non-crenulated (Stereocidaris alcocki). B. non-perforated and non-crenulated (Stomopneustes variolaris). C. perforated and crenulated (Chaetodiadema africanum).

FIGURE 5. Histocidaris elegans (SAMC-A 22212): A. Side view of preserved specimen. B. Apical system of preserved specimen.

FIGURE 6. Eucidaris metularia (SAMC-A 28226): A. Map showing distribution. B. Side view of preserved specimen. C. Apical system of preserved specimen.

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