Mr. Salter on Palfsozoic Fossils from South Africa. 223 



ECHINODERMATA. 



Remains of Crinoidea are so abundant in Mr. Bain's collection as to promise to 

 future observers a rich harvest of species. The specimens sent to England by 

 Mr. Bain are from the Warm Bokkeveld and Kokman's Kloof*. It would of course 

 be idle to give names to the numerous varieties of stems and joints (PI. XXV. 

 figs. 21-28), unless the bodies to which they belong had been determined. They 

 much resemble those of Rhodocrinus , as figured by Goldfuss. 



There is one tolerably perfect species, however, which we dedicate to the late 

 Dr. Stanger, who brought it to England on his last visit. We are obhged to 

 propose a new genus for it. 



Ophiocrinus Stangeri, nov. gen. et sp. PI. XXV. fig. 20. 



The calyx is cup-shaped, and rather wider than high, with prominent radial and 

 brachial pieces, somewhat depressed inter-radial areas, and twenty simple arms a 

 httle longer than the calyx. We have only three rays and two inter-radial areas, 

 one lateral and one anal (?). 



The stem is stout, consisting of alternating thick and thin rings (fig. 23 may 

 very possibly belong to it). The fivef basals are prominent, overhanging the stem, 

 hexagonal, and alternating with the pentagonal first radials. 



Radial pieces broader than long, three in the two posterior rays, — five in the 

 other (antero-lateral ?) ray. Brachials of similar size; two and three in the pos- 

 terior arms, three in the antero-lateral. 



Inter-radial spaces filled with numerous, twenty to thirty, hexagonal pieces ; the 

 upper ones very small, the lower two or three nearly as large as the radials. 

 Interbrachial pieces eight or nine, very small. 



Arms simple, cyhndrical, consisting of a single series of wedge-shaped joints. 



* Encrinital remains (or impressions of joints and stems) are common in the dark schists of the 

 Gydow Pass, and in the rock -which abounds with Orthis palmata (from the Cold Bokkeveld). A 

 specimen of Phacops Africanus from the Cedarberg, collected by Dr. A. Smith, is also associated with 

 Encrinital casts. 



The Editor has lately received from the Cape of Good Hope a few portions of Encrinital stems (in a 

 ferruginous condition, similar to some in Mr. Bain's collection, but differing from the figured specimens), 

 which were picked up by a soldier of Sir G. Cathcart's army, near the most easterly branch of the 

 Orange River. The Encrinital remains are associated with ferruginous casts of small turrited shells, 

 with fragments of agates, quartz, and fossil wood, and with crystals of mundic. 



Amongst some gravel, collected twelve years ago near the mouth of the Orange River, and sent to the 

 Editor at the same time with the above, another fragment of Encrinital stem occurs. This is also fer- 

 ruginous and resembles one of the above-mentioned specimens. The gravel contains agates, siliceous 

 rocks, black schist, and copper-ore. 



t Goldfuss, Nova Acta Acad. Curios, vol. xix. 1838 ; Petref. Germ. vol. i. p. 193. 

 VOL. VII. SECOND SERIES. 2 H 



