1 34 
arranged in small roundish masses. The anthocodial armature shows eight points of 5 — 6 
converging pairs of spindles, and one at the top of each row may be much stronger than its 
neighbour and project beyond the polyp. These 8 projecting spines catch the eye at once. 
The supporting bundle is very strong, with one spindle projecting far beyond the polyp. 
Other spicules. The predominant spicules of the polyps, apart from those on the collar, 
are spinulate slightly sigmoid spindles, the “f’s” of the “Challenger” description. The abundant 
spindles on the polyp stalks are almost en chevron. The characteristic spicules of the collar 
region are irregularly quadrangular bodies with very rough protuberances which secure inter¬ 
locking. They correspond to what are called “crosses” by Wright and Studer. There are also 
spindles enlarged at one end into very rough clubs (pseudo-clubs), curved spindles with very 
strong protuberances on the convex side, and irregular bodies like teeth with many roots. 
Locality: Station 99. 
A larger colony, flattened from side to side, may also be referred to D. collaris. Here 
the polyparium is markedly oval in cross section. There is in this specimen no hint of any 
projection from the anthocodial points (which consists of 5—6 equal pairs en chevron). The 
lower cortex shows, among other forms, numerous flattened, spindle-shaped, triradiate, boomerang¬ 
like, and irregular spicules, which were not noticed in the other colonies studied. A marked 
feature is the length and strength of the prongs arising from some of the curved spindles, 
pseudo-clubs, and irregular multiradiate bodies. 
Previously recorded from Kei. 
25. Dendronephthya reticulata n. sp. (Plate III, Fig. 6). 
Stat. 79. 2°43'S., H7°44 / E. 41 — 54 M. Fine coral sand. 1 Ex. 
v 
Diagnosis: Umbellate; much branched; soft and flabby; polyps in small rigid umbellate 
groups at the tips of the small branches; polyp stalks long and naked; point spicules 3 — 5 pairs, 
one or both of the uppermost pair projecting; supporting bundle strong; cortex spicules of the 
branches long, straight or curved ; numerous opaque white spindles give the surface a reticulate 
appearance. 
Anthocodial Grade and Formula : 
IV = 3—5 p -p o Cr -p strong S. B. 
Descriptive Notes: 
Colony as a whole. A very flabby colony from which the sterile stalk has been broken 
off. When lying flat it shows a circular outline, 5 cm. in diameter. 
Branching. From the top of the sterile stalk there arise three main branches which 
again divide and subdivide. 
Colouring. The general colour is a deep ash-grey, strangely tinged with green, but the 
large spindles are opalescent and give the surface of the colony a reticulate appearance. The 
spicules of the points are rose red. 
Polyp stalks. The polyp stalks are long and naked. The polyps are arranged in small 
umbels at the tips of the small branches. 
I he anthocodial armature consists of eight groups of 3 — 5 en chevron pairs, but 4 is 
the most common number. These points are very prominent on account of their colour and the 
