77 
vinced as to the validity of his distinctions between Lemnalia and Paralemnalia. Thus the degree 
to which the polyps are retractile varies greatly in one colony, as Reinhart emphasises. Some 
of our specimens show prominent tentacles and anthocodiae; in others the retracted polyps are 
flush with the general surface. 
A brownish specimen from Station 258 consists of 8 finger-like, flexible yellowish lobes 
evidently torn off a sterile trunk; the anthocodiae are practically sessile and scattered, more crowded 
towards the tips of the fingers. A common length for a finger is 2.2 cm., with a breadth of 4 mm. 
The spicules include : 
(a) narrow elongated spindles, smooth or with few warts; 0.35 x0.02 mm. These form the 
great majority; 
(b) smaller spindles with two or more whorls of warts, and warty ends; 0.05X0.01 mm.; 
occasionally arcuate ; 
(c) rather long whorled warty spindles with smooth ends (0.12X0.01 mm.); 
(d) minute, probably young, compact spindles with two zones of small warts. These are not 
noted by Bourne. 
Previous Station not recorded. 
8. Lemnalia Icevis n. sp. (Plate XIV, Figs. 7 and 8). 
Stat. 89. Kaniungan Ketjil. Reef. 1 Ex. 
Stat. 104. Sulu. 14 M. Sand. 1 Ex. 
Stat. 315. Anchorage East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Litho- 
thamnion. 2 Ex. and fragments. 
The best specimen from Station 315 is a vigorous cream-white colony, standing 13.5 cm. 
in height. A short stout basal portion almost immediately divides into four main branches, 
each of which gives off stout secondary branches rising in the main parallel to one another. 
These branch and rebranch, finally giving origin to slender polyp-bearing twigs. 
The polyps are on short stalks, and are not very close to one another except at the 
ends of the twigs. Somewhat striking is the smallness of the polyp-bearing area as compared 
with the sterile trunk and branches. 
The most distinctive feature, however, is in the spiculation, for the great majority of the 
spicules are delicate perfectly smooth spindles and rodlets, often with frayed ends. Dimensions 
up to 0.52 X 0.02 mm. In their absolute smoothness these larger spicules recall those of sponges. 
There are also, varying in frequency in different specimens, small arcuate forms which bear 
numerous conical prominences, usually stronger on one side. Dimensions up to 0.17 x0.02 mm. 
From some of the asymmetrical bows a few three-rayed smooth types may be derived. Minute 
sculptured scales occur on the tentacles. 
9. Lemnalia squamifera n. sp. (Plate XV, Fig. 10: Plate XXVII, Fig. 8). 
Stat. 248. Tiur. Till 54 M. 
A rigid white colony and fragment from Station 248 require the establishment of a new 
species of Lemnalia. In the form of growth they approach most nearly to L. bauiana (May) 
which species has been merged by Kukenthal with L. brassica (May), (Versuch Revision etc. 
