270 



b. Transparent spicules of the partition walls (fig. 16). 



These show a greater perponderance of straight forms and 



bear more compound spines. 

 Spindles 0,85 X 0,05 mm. 

 Single clubs 0,7 x 0,03. 



c. Transparent and pale yellow spicules of the disc-like expanded 

 portion of the verruca (fig. 17). 



On the whole these are smaller than the two preceding groups 



and hardl}' so spinose. 

 Spindles 0,65 X 0,02 mm; 0,6 X 0,01 mm. 



d. Spicules of the anthocodia mostly pale yellow with few and small 

 spines (fig. 18). 



Straight spindles 0,6 X 0,015 mm; 0,4 X 0,02 mm. 



Fiff. 16. 



Fig. 17. 



Fiff. 18. 



Fiff. 19. 



Fig. 16. Transparent spicules of the partition walls. 



Fig. 17. Transparent and pale yeUow spicules of the verruca-disc. 



Fig. 18. Pale yellow spicules of the anthocodiae. 



Fig. 19. Pale yellow spicules of the tentacles. 



Curved spindles 0,55 X 0,015 mm; 0,55 X 0,01 mm. 

 Hockey-clubs 0,6 X 0,2 mm; 0,4 X 0,015 mm. 

 e. Pale yellow spicules of the tentacles mostly curved spindles and 

 hockey-clubs (fig. 19). 



Curved spindles 0,45 X 0,02 mm; 0,35 X 0,03 mm. 

 Hockey-clubs 0,35 X 0,04 mm. 



Systematic Position. 



The presence of the close feltwork of spicules already referred to 



places this form in the sub -family Siphonogorginae as defined by 



Wright and Stud er. The genera Siphonogorgia (Kölliker), Chiro- 



nephthya ("Wright and Studer), Paranephthga (Wright and Studer) and 



