1 93 
It gives off numerous upward-curving parallel branches, some of which have secondary and 
tertiary branches, while others are unbranched. There are prominent calyces, often separated by 
an interval of 2 mm., and rising to a height of about 1 mm. They narrow slightly towards the 
mouth, where a hint of the retracted polyp can sometimes be seen. The centre of the medullary 
portion may show a core of yellowish organic material, but no distinct nutrient canals, which 
are represented peripherally. The predominant cortical spicules have large very compound pro¬ 
minences ; those of the core are relatively smooth with distant prominences or warts. In short, 
the spiculation agrees with Kukenthal’s description. 
Two other specimens from the same station show a more pronounced rose-red colour, 
and the branching is more dichotomous and less pinnate. The spiculation is practically the same. 
The retracted polyps tested with acid showed no effervescence. In the centre there is a distinct 
beginning of a firm organic axis, which Kukenthal emphasises as characteristic of Diodogorgia. 
There are two very clear zones of nutrient canals outside the medullary portion. 
Much of the surface is covered with sponge and there are also attached Cirripedes. 
Previously recorded from Francis Bay } S. Africa. 
Family Suberogorgiidae. 
Genus Suberogorgia. 
1. Suberogorgia kollikeri Wright and Studer. 
Wright and Studer, Challenger Report, 1899, p. 167, 1 fig. 
Stat. 133. Lirung, Salibabu-island. 36 M. Mud and hard sand. 1 Ex. 
Stat. 301. io° 3 8 / S., I23°25 / .2E. 18—45 M. Mud, coral and Lithothamnion. 1 Ex. 
Stat. 310. 8° 30'S., II9°7 / .5E. 73 M. Sand with few pieces of dead coral. 1 Ex. 
A reddish brown specimen from Station 133, 5 cm. in height, with five branches arising 
at an acute angle and at a considerable distance (e. g. 8 mm.) from one another. The base of 
the incomplete colony has a diameter of 1.5 mm. and the whole is slender. There is no hint 
of anastomosis. The verrucae stand out laterally and are very prominent (1 mm. in height). They 
often show 8 lobes, corresponding to 8 longitudinal lines. The polyps may be entirely retracted 
or may stand out beyond the verrucae for a distance of 0.5 mm. They show 8 triangles of 
curved spindles in chevron and a slight basal collaret. The coenenchyma spicules are mostly 
very yellow warty spindles, often,, but not always, distinctly zoned (0.24 X 0.06 mm.). Other 
spicules (spindles and rocllets), both yellow and colourless, occur which are almost smooth or 
with a small number of sharp points (0.18 x0.02 mm.). A few almost orbicular forms occur. 
There are similar specimens from two other stations. 
Previously reported from off Japan, with varieties from Zanzibar, Ceylon, and Andamans. 
Also recorded for the Siboga Expedition by Nutting from Stations, 164, 273, 274, 305, 310. 
2. Suberogorgia pule hr a Nutting. 
For description see: NUTTING, Gorgonacea of Siboga Expedition, Scleraxonia, 1911, p. 30, 3 fig. 
Stat. 164. i°42'.5 S., 130 / 47 , .5 E. 32 M. Sand, small stones and shells. 1 Ex. 
SIBOGA-EXPEDITIE XIII d. 
25 
