111 
across. The central branch in this specimen is not so well developed as in the preceding. The 
colour is identical except that practically the whole of the sterile stalk is pink. 
The third colony differs only in coloration. The sterile stalk is 5 cm. long. The lower 
part is pink but the upper a dirty white. The width of the polyparium is 5 cm. and the height 
2.5 cm. There is no central branch. The spicules of the main branches are white, but some of 
those of the smaller branches and those of the anthocodise are a dark red, giving the colony 
a distinctly chocolate red appearance. 
The supporting bundle varies in different parts of the colony. In some cases there is a 
very distinct bundle, but in others it is practically or entirely absent. 
The double rows in the anthocodia are often very indefinite, and the number of spicules 
in each row varies from six to eRht. 
<_> 
The stellate spicules of the sterile stalk are very characteristic, and agree with Kukenthal’s 
description. 
Previously recorded from Japan. 
6. Dendronephthya ehrenbergi Kiik. (Plate XIX, Fig. 13). 
For description see: KUKENTHAL, Korallentiere des Roten Meeres, 1904, p. 56. 
Stat. 164. i°42 / .5 S., I30°47 / .5E. 32 M. Sand, small stones and shells. 
Stat. 258. Tual-anchorage, Kei-islands. 22 M. Lithothamnion, sand and coral. 
Stat. 315. Anchorage East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Litho¬ 
thamnion. 3 Ex. 
Stat. unrecorded. 2 Ex. 
Diagnosis: Divaricate; contour irregular-, polyps in little groups of 5 — 8; polyp stalks 
short; supporting bundle medium -, point spicules 6 pairs; no trace of pseudo-crown; grade II; 
spicules: canal-walls show few bent rough spindles; the stalk cortex has very distinctive long- 
curved spindles and irregular clubs, discs, and spheres. 
Anthocodial Grade and Formula: 
II = 6 p —f— o Cr —(— medium S. B. 
Descriptive Notes: 
Colony as a whole. Ten specimens from Stations 164 and 258, including two fine speci¬ 
mens, agree closely with Kukenthal’s definition of this species; the largest is 40cm. in length. 
Branching. Markedly divaricate but not markedly flattened. The contour of the colony 
is irregular. These features point to the suensoni-group ; and in that group the only species to 
which the specimens could be referred is D. ehrenbergi. The mode of branching is the same, 
and the resemblance of these specimens to Kukenthal’s coloured figures is striking, except that 
they have much less of a sterile stalk. 
Colouring. Rich red in the coenenchyma and with greyish-yellow anthocodial spicules. 
Polyp stalks short. Polyps arranged in little divaricate groups of about 5—8. 
Polyp spicules. There are in most cases six pairs of white spicules arranged en chevron 
in each of the anthocodial lines : in Kukenthal’s forms there were 4—5 pairs. The supporting 
bundle consists of thick, rough, red spindles (up to 1.5 mm.) projecting freely for about 0.5 mm. 
Other spicules. The canal-walls show a few bent, rough spindles. The spicules of the 
