53 
The diameters of the shallow saucer are 3.7 cm. and 2.8 cm. The height of the stalk 
is not more than 1 cm. 
The spicules include very numerous small clubs, some slender spindles, and characteristic 
large tuberculate spindles, which may be 2 mm. in length. This is shorter than Miss Pratt’s 
description (about 3 mm. long), but this is probably correlated with the smaller size of our 
specimen. A young colony from Station 152 shows the same spiculation (notably small clubs 
with non-divaricate heads and a small whorl of knobs near the base of the handle). 
Previously recorded from Maldives, Ceylon and Shubuk. 
9. Sinularia jiexibilis (O. G.). (Plate XVI, Fig. 8 ; Plate XXIII, Fig. 5). 
For description see: KOLONKO, Die Gattung Sinularia, Mt.Zool. Mus. Berlin, XII, 1926, p. 310, 1 fig. 
Stat. 60. Haingsisi. 23 M. Lithothamnion in 3 M. and less. Reef. 3 Ex. 
Stat. 127. Sangir-island, Taruna Bay. Reef. 1 Ex. 
Stat. 213. Saleyer. Up to 36 M. Coral reefs, mud and mud with sand. 3 Ex. 
Several specimens of this remarkable species, differentiated from all the others by the long 
narrow twigs, which bear the monomorphic zooids. There is a suggestion of a shock of elongated 
tentacles spreading profusely from the top of a trunk. 
The largest specimen stands 18.8 cm. in total height, of which 7.7 goes to the sterile 
trunk. The base of the stiff trunk has a breadth of 8.3 cm. and a thickness of 5.2 cm. The 
trunk is very massive, but the branches are very pliable. About a dozen main branches may 
be distinguished, but they immediately give off secondary branches which bear the long tentacle¬ 
like lappets. In some cases a lappet is given off by itself almost from the base of a main 
branch and may attain a length of 7.8 cm. with no more than hints of bud-like twigs. A common 
length of an ordinary lappet is 5 cm. The lappets are densely covered with autozooids, each 
about half a millimetre in diameter; but there is no hints of siphonozooids. The trunk is densely 
filled with large warty spindles and the whole surface of the trunk is covered with a dense array 
of clubs. The general colour is creamy white. There is thorough agreement with Kolonko’s 
description. 
One of the smaller of the three specimens from Station 213, 12.5 cm. in height, has a 
sterile trunk like an inverted cone, very remarkable in not showing any base of attachment. It 
suggests the blunt end of a Cavernularia! A still smaller specimen from Sangir has a total 
height of 10.5 cm. In the smallest specimen with a height of 6 cm. the longest lappet was only 
1 cm. in length. (1) The large internal spindles are densely covered with large compound warts. 
In some of the narrower spindles the warts tend to be in transverse rows, but not in the 
broader types. A few of the spindles are bent across the middle, and a few triradiates and 
incipient crosses occur. An average size of spindle is 0.5 X 0.13 mm. They attain a length of 
about 1.8 mm. and a breadth of 0.3 mm. (2) The small clubs are characteristically short in 
relation to the breadth of the club-head, and occur in two types, ( a ) with the head consisting 
of diverging roughnesses, and ( b ) with the head approximately foliaceous. A common size of 
club is 0.1 X °-°5 mm - (3) there are also small symmetrical tuberculate spindles, a few tuber¬ 
culate crosses, and minute multiradiate types almost stellate. 
Previously recorded from Amboina, Samoa, Philippines, etc. 
