4 8 
A small specimen with compressed lobes, retracted autozooids, and normal spiculation, 
from Station 7, is harder and more stony, due mainly we imagine to the state of preservation. 
A colony from Station 258, Tual, Kei Island, is slightly divergent from the type, and 
a similar smaller colony from an unrecorded locality. In the larger specimen a somewhat com¬ 
pressed sterile trunk gives off two main branches which bear digitate compressed lobes, most 
of which arise about the same level and do not spread out all round. The trunk rises to a 
height of 5.5 cm., with maximum diameters of 5.3 cm. and 2.2 cm. A common length of a 
finger-like lobe is about a centimetre and the median diameter about 0.5 cm. As Klunzinger 
suggested there is considerable variety in mode of growth, and it is perhaps more important to 
notice the paucity of irregularly branched large tuberculate internal spicules, most of them being 
typical spindles. The minute superficial clubs have somewhat pronounced terminal knobs projecting 
on the whole at right angles. There are no siphonozoids. The autozoids are small, very distinct, 
and tending to occur in crowded rows on the lobes. We cannot regard any of the peculiarities 
noted as more than variations. 
A specimen from Station 299 shows some trifurcate or more irregularly branched massive 
spicules, a few incipient large crosses, and many incipient small crosses. To some extent it is 
possible to distinguish the species of Sinularia by the details of the small clubs. Thus in 
A. gardineri the knobbed projections at the broad end of the club are closely apposed; in 
S. polydactyla they stand out abruptly, more or less at right angles; in 5 . querciformis they 
are longer, more irregular, and much more divaricate. 
From an examination of many specimens of Sinularia polydactyla we conclude that no 
importance can be attached to the nature of the lobes, whether finger-like or conical, and 
that the details of the minute clubs are also variable though the terminal projections are never 
so closely apposed as in S. gar diner i, nor so divaricate as in A. qiierciformis. Yet, as one would 
expect, there are occasional approximations to both these types. Miss Pratt’s 6\ herdmani may 
be distinguished by its extremely minute autozooids. The preparations of spicules from some of 
the colonies, such as that from Station 142, sometimes have the large spicules represented by 
spindles without any forking or branching; the occurrence of irregular forms seems to us to 
be quite fortuitous. A feature of the large spindles, as figured for instance by Burchardt, is 
the presence of a slight waist or crack transversely across the middle, connected no doubt with 
the mode of development. 
Previously recorded from Red Sea, Ceylon, Maldives, Amboina, Zanzibar, Baui Island, 
Lucipara, New Hanover, Luzon, Jaluit, New-Guinea, Ternate, British New-Guinea, China Strait, 
East Madagascar, Mergui, Gulf of Cutch. 
3. S inularia herdmani (Pratt). 
= Sclerophytum herdmani Pratt. 
For description see: PRATT, Ceylon Pearl Oyster Report, XIX, 1905, p. 253, 2 figs. 
Stat. 58. Savu. Reef. 1 Ex. 
Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 2 Ex. 
Stat. 301. io° 38' S., i23°25'.2E. Reef. 1 Ex. 
A large colony from Station 301, 8 cm. high and with a maximum spread of 9.5 cm., 
