20 i Annals of the tiouth African Museum. 



so little difl'erence that lie advises considering this specimen, for the 

 present, as only a variety of patagonicus. He says the abactinal plates 

 are larger than in patagonicus, being more as in grannlaris. It is 

 possible that in larger specimens, the hare area on the marginal 

 plates would disappear, at least interradially. 



CALLIASTER BACCATUS. 

 Sladen, 1889. CHALLENGER Ast., p. 280; pi. 56, figs. 1-4. 



The PIETER FAURE specimens agree well with Sladen's description 

 and figures. The larger has R = 44 mm. and the smaller, 40 mm.; 

 the former is thus just the size of the original specimen. The Mossel 

 Bay specimen is somewhat larger as R = 52 mm. On a single 

 actinal plate of this specimen is an indubitable pedicellaria and there 

 are several of the pits where pedicellariae have been. The pedicel- 

 lariae are thus not invariably wanting in this species. Their usual 

 absence is however one of the many good species characters which 

 l/iiccatus possesses. The single pedicellaria seen has unequal, asym- 

 metrical, non-denticulate valves; the larger valve is scarcely higher 

 than wide and is a little bent sideways; the smaller is more decidedly 

 bent and is distinctly narrower. 



P.F. 1173. 34 18' S., 22= 13' E., 38 fms. 1 specimen; adult' 



P.F. 1710. Cape St. Blaize, N. by E. /.t E., 6'/ 4 miles, 35 fms. 

 M., s. 1 specimen, adult? 



Mossel Bay. C. W. Black, 1913. 1 specimen, adult. 



CALLIASTER ACANTHODES * sp. nov. 

 Plate XII. Figs. 3, 4. 



R = 79 mm.; r = 27 mm.; R = nearly 3r. Br = 30 mm.; at 

 fifth supermarginal, br = 14 mm. and at 12th, br = 9 mm. Disk 

 large, slightly tumid but with depressions near interradial margins. 

 Rays tapering at first abruptly but beyond fifth supermarginal, very 

 gradually. Abactinal surface of disk covered with irregularly circular 

 plates, which are more or less tumid and bare, though there is a 

 marginal series of coarse, flat, irregular granules around each one; 

 the median radial series comprises the largest plates and runs almost 

 to the tip of the ray but the distalmost plates are separated from 

 the terminal plate and from each other also, by the meeting in the 

 midradial line of the distal superomarginal plates; the series of plates 

 on either side of the radial runs as far as the 12th superomarginal; 



= full of thorns, in reference to the numerous abactinal spines. 



