324 Annals of the South African Museum. 



and it is probable the colour in life is red or orange of some shade. 



P.F. 2563. Vasco de Gama Point, S. 75 E., 13 miles, 166 fms. 

 Blk. spc. 17 specimens; adult and young. 



P.F. 2798. Vasco de Gama Peak. N. 71 E., 18 miles, 230 fms. 

 St. 1 specimen ; adult. 



Holotype, South African Museum no. A 6441. P.F. 2798. 



This species is near 0. ingrata Koehler in its general features but 

 differs in the arm-spines and in the higher and more cylindrical 

 disk-granules. The lower arm-spines are very distinctive, no other 

 member of the genus approaching it in this particular. The smallest 

 specimen in the present series is only a little over 1 mm. across the 

 disk and the arms are scarcely 3 mm. long; it is obviously very 

 immature and shows none of the specific characters clearly. The 

 next larger is about 2-5 mm. across the disk and shows all the specific- 

 characters more or less distinctly. These two specimens were asso- 

 ciated with an adult in such a way as to indicate that they were 

 its young and led me to the conviction that this species, like so many 

 other austral echinoderms, is viviparous. On opening one of the 

 alcoholic specimens, I found this to be the case, as there was a 

 single young one, like the smallest described above, in each one of 

 six bursae. The young evidently leave the bursae at this stage of 

 development but apparently may remain on or with the mother 

 until twice as large. 



OPHIOTHAMNUS REMOTUS. 

 Lyman, 1878. Bull. M. C. Z., vol. 5, p. 149; pi. VIII, figs. 201-203. 



In neither the preliminary report (op. cit.} nor in his final CHAL- 

 LENGER Report, do Lyman's figures give an accurate idea of the 

 close-set, operculiform oral papillae of this little brittle-star, but the 

 earlier figures are the better in this particular. I have compared 

 the PIETER FAURE specimens with a CHALLENGER cotype and there 

 is no doubt of their identity. Bell (1905, Mar. Inv. South Africa, 

 vol. 3, p. 258) reports that, of this species, "a good set was obtained 

 from Cape Natal" and "a few from off Algoa Bay". 



One of the specimens in the present collection, (13455), about 

 3 mm. across the disk is remarkable for the spinulation of the disk ; 

 instead of slender acicular spinelets which characterize most specimens 

 there are just 7 stout abruptly pointed spinelets, 5 of which form a 

 symmetrical quintet at the center of the disk; in addition there are 

 a number of minute widely scattered granules. At first I thought 

 this specimen might represent a second species but in view of the 



