Bathysalenia phoinissa ( A. Agassiz & H.L. Clark, 1908 )

Filander, Zoleka & Griffiths, Charles, 2017, Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa, Zootaxa 4296 (1), pp. 1-72 : 31

Bathysalenia phoinissa ( A. Agassiz & H.L. Clark, 1908)

Fig. 31 A–C.

Salenia phoenissa: Döderlein, 1910: 247 , 256–257.

Salenia phoinissa: Mortensen, 1935: 377 –379. Pl. LXXXIV, Fig. 1 ; Clark & Courtman-Stock, 1976: 227. Bathysalenia phoinissa: Schultz, 2011: 1170 , Fig. 2065.

Material examined. MBC-A077789; MBC-A077788; MBC-A077787; SAMC-A22266; SAMC-A22291.

Identification. Test small, low hemispherical with flat apical disc. Apical disc large, with dark v-shaped structures below genital plates and above oculars, suranal plate distinctive. Primary spines very long, slender and ridged yellow, with red bands.

Global maximum size. Maximum test diameter 11 mm.

Global distribution. Endemic to South and East coast regions of South Africa ( Clark & Courtman-Stock 1976; Schultz 2011), at 100–150 m depth.

Remarks. Specimens identified through this study extend previously known distribution from Mossel Bay/ Knysna area, northwards towards the Durban area. Also a 48 m depth extension from the previously known maximum depth of 102 m ( Döderlein 1910; Clark & Courtman-Stock 1976) to 150 m.

Figures

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

FIGURE 31. Bathysalenia phoinissa (MBC- 077789). A. Map showing distribution. B. Side view of preserved specimen. C. Apical system of preserved specimen.