io5 
I. Glomeratae. 
i. Dendronephthya gigantea (Verr.). (Plate XIX, Figs. 8 and 9; Plate XXVIII, F'ig. 3). 
For description see: VERRILL, Bull. Mus. Comp. Zool. Cambridge, 1864, p. 40. 
Stat. 123. North-bay, Biaru-island. 36—27 M. Stone and Lithothamnion-bottom. 1 Ex. 
Stat. 165. Anchorage on North-east side of Daram-island (False Pisangs), East-coast of Misool. 
49 M. 3 Ex. 
Stat. 213. Saleyer-anchorage and surroundings, including Pulu Pasi Tanette, near the North 
point of Saleyer-island. Up to 3 6 M. Coral reefs, mud and mud with sand. 1 Ex. 
Stat. 240. Banda-anchorage. 9—45 M. Black sand. Coral. Lithothamnion bank in 18—36 M. 3 Ex. 
Stat. 258. Tual-anchorage, Kei-islands. 22 M. Lithothamnion; sand and coral. 1 Ex. 
Stat. 261. Elat, West coast of Great-Kei-island. 27 M. Mud. 2 Ex. 
Stat. 303. Haingsisi, Samau-island. Up to 36 M. Lithothamnion. 3 Ex. 
Stat. 315. Anchorage East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Litho¬ 
thamnion. 2 Ex. Unrecorded, 4 Ex. 
Diagnosis ; Glomerate ; with numerous rounded, polyp-bearing masses, the lowest branches 
slightly foliaceous; polyps densely arranged in characteristic hemispherical masses; polyp stalks 
short, under 1 mm.; supporting bundle very strong; point spicules very variable, 1—6 pairs; 
no pseudo-crown; grade IIP; spicules of the upper cortex are large (4mm.), covered with blunt 
warts, and lie transversely; lower cortex and canal-walls have stouter and shorter spindles, 
triradiates and multiradiates. 
Anthocodial Grade and Formula: 
III. = (1 — 6) P -p o Cr -|- very strong S. B. 
Descriptive Notes : 
Colony as a whole. Two handsome orange-coloured colonies, the largest 28 cm. wide and 
20cm. high; ten others smaller in size. 
Branching. Markedly glomerate. The numerous rounded polyp-bearing, boss-like masses 
predominate over the stem and main branches. Therefore the colonies must be included in 
Kukenthal’s kempricki-grouip. The lowest branches of the colony show slight foliation. 
Colouring Generally deep orange-coloured polyps and white cortex. The specimens from 
Station 240, however, showed quite a different colour-scheme, viz. bright red spindles in the 
supporting bundle and anthocodiae, but the general cortex greyish, with opaque, white, almost 
porcellanous spindles. 
Polyp stalks. Short, under 1 mm. 
Polyps. Densely arranged in very characteristic plump hemispherical masses of 7 or so. 
Polyp spicules. The anthocodial architecture has the eight points often elongated, with 
the tips meeting above the polyp. Another feature is the practical absence of any true crown. 
Kukenthal notes in his definition of D. gigantea that each of the eight points has 5—6 pairs 
of spicules, the uppermost much larger than the others and markedly projecting. It is easy 
enough to find on the specimens anthocodiae which exactly correspond with this description. 
Yet on the same colony may be found points with 5, 4, 3, or 2 pairs, and finally even 
a single pair, abutting against a few transitional small spindles leading on to the supporting bundle. 
Great care was taken to avoid damaged or disturbed anthocodiae, and the Plate XIX, 
figs. 8 and 9 shows a series of frequently recurring types of architecture. 
SIBOGA-EXPEDITIE XIII d. 
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