Plate 1

Ophidiaster macknighti n.sp. 1.—Abactinal surface. 2.—Actinal surface.

Photo: M. D. King.

Figs. 5–9.—Odinia novaezelandiae n. sp. 5.—Portion of abactinal surface of disc, showing the raised madreporite, irregularly shaped plates, spines, pedicellariae and papulae. 6.—Crossed pedicellaria. 7.—Portion of genital inflation near the disc, showing the costae and adambulacral spines and pedicellariae. 8.—Portion of arm, beyond the genital inflation, in lateral aspect, showing the intercostal plates. 9.—Portion of arm near the tip, showing the adambulacral plates and the very conspicuous, elongate costal spines.