12 Thorison, South African (jorgoii'icea. 



The yellow^ spicules of the anthocodiae are fairly long-, 

 straight, narrow spindles with simple processes, a few yellow 

 club-like spicules occur among these spindles. These spicules 

 vary in size from about 0.072 x 0.018 to 0.270 x 0.072 mm. 

 Ihe white spicules of the calyx are mainly foliaceous clubs, 

 approximately 0.108 x 0.054 to 0.198 x 0.072 mm. in size. 

 Spinous clubs and spindles are also present, though not nearly 

 so abundantl>^^ and are of about the same size as those of the 

 anthocodias. L he spicules of the coenenchyme covering the 

 nodes are: (i) mainly yellow, more rarely white foliaccous 

 clubs, in many of these the stalk portion is reduced, and the 

 spicule thus becomes more equally foliaccous in all directions; 

 the foliaccous clubs are from 0.108 x 0.090 to 0.216 x 0.144 mm. 

 in size; (2) spheres with foliaccous processes, about 0.072 x 

 0.090 mm.; (3) double spheres, about 0.18 x 0.014 mm.; fd.) 

 clubs reduced to heads, about 0.144 x 0.108 mm. ; (0 spindles, 

 with simple processes, about 0.126 x 0.036 mm.; (6) spinous 

 clubs, about 0.198 x 0.054 ""^n^- \ C7) simple usualh^ curved rods, 

 without processes, and rounded at the ends, from 0.054 x 0.012 

 to 0.144 ^ 0.018 mm. The spicules from the coenenchyme of 

 the internodes are similar to the preceding, differing mainly 

 in being white. 



Locality, etc. — P. F., 13,122. Cape Morgan, N.N.E., 9f 

 miles. By dredge. Depth, 47 fathoms. Nature of bottom, 

 broken shells. Date, July 25th, 1901. 



Acabaria sp. 

 Plate v., Fig. 5. 



This description is taken from an incomplete specimen, 

 which is of a yellow colour, but darker at the nodes. The 

 branching is in one plane, and the specimen is 93 mm. high, 

 70 mm. transversely, and 8 mm. thick. The axis, which is 

 brown near the base and yellow near the apex, is horny and 

 calcareous, giving stiffness and rigidity to the specimen. The 

 branches apparently usually originate at the nodes. The 

 coenenchyme on the surface of the axis is thin, and shows faint 

 superficial lines. The nodes near the base are about 5 mm. in 

 height, 7 mm wide, and 6 mm. thick, and are separated from ad- 

 joining nodes by intervals of about 3 mm. The nodes are 

 smaller and longer m the ufiper parts of the specimen, thus 

 these nodes are sometimes 2 by 2 by 2 mm., and the 

 internodes 13 by 2 mm. No calcyces are found on the colony, 

 this is therefore presumably only the basal part. The branching 

 is nearly clichotomous, but not regular, rarely branches may 

 be seen originating from the internodes, and there is sometimes 

 a slight anastomosis. 



