The Echinoderm Fauna of South Africa. 359 



and are broadly in contact, until we reach the condition of the 

 largest adult at hand where all the arm-plates present (every arm 

 is broken) are broadly tetragonal and very fully in contact, tho the 

 more distal are markedly wider distally than prnxinially. The first 

 under arm-plate of the smallest specimen is relatively large, much 

 wider than long, somewhat heptagonal, in contact with the adoral 

 plate on either side and with the second under arm-plate distally; 

 the latter is considerably larger still, tetragonal with the convex 

 distal side longest and the straight proximal side much the shortest; 

 it is about as wide as long and is separated from the third under 

 arm-plate by the side arm-plates; the third plate is similar to the 

 first in size and shape: the fourth is similar but smaller; the fifth 

 and subsequent plates are small, much wider than long, with a straight 

 proximal side, strongly convex distally and with the lateral angles 

 more or less truncated ; the under arm-plates, except the first two 

 or three, are broadly separated from each other. With increasing- 

 size, the basal under arm-plates become bigger and tend to be more 

 and more in contact with each other, until the condition shown by 

 the largest adult is reached where the first eight plates are in contact, 

 and plates 2 and 3 are particularly large and conspicuous. 



P.F. 16905. Cape Point, N.E. by E. V* E., 40 miles, 800-900 fms. 

 Gn. m. 4 specimens; young. 



P.F. 16991. Cape Point, N.E. by E. V 2 E., 43 miles, 900 fms. 

 Gn. m. 4 specimens; adult and young. 



P.F. 17268. Cape Point, E. 3 A, N., 42 miles, 930 fms. Gn. m. 

 1 specimen ; young. 



P.F. 17330. Cape Point, N. 86 E., 43 miles, 900-1000 fms. 

 Grey m. 11 specimens; young. 



P.F. 17351. Cape Point, N. 86 E., 43 miles, 900-1000 fms. 

 Grey m. 1 specimen; young. 



OPHIURA FLAGELLATA. 



Ophioglypha flagellata Lyman, 1878. Bull. M. C. Z., vol. 5, p. 69; 



'pi. II, figs. 49-51. 

 Ophiwa flagellata Meissner, 1901 . Bronn's Thierreichs, vol. 2, pt. 3, p. 925. 



The specimens in the PIETER FAURE collection are all young 

 (7'5-14 mm. in disk-diameter) and all have the disk fully covered 

 with scales. As most of the arm-spines are broken, the correct 

 identification of the specimens was not at first suspected. They agree 

 well however with specimens of similar size from Japan. The species 

 has been reported from both the southern Atlantic and the Indian 



