As in F. patelliformis in F. fragilis also a broken part of a 
Cycloseris-iovm may grow completely into a circular corallum One 
specimen in the collection has regenerated from one half. On the 
upper surface hardly any irregularity is to be seen, whilst on the 
lower surface the line of fracture is still clearly visible. The result 
of the regeneration is a very regular corallum of the Cycloseris-^ovm. 
Most specimens of the Diaseris-^ovm in my collection are wedge- 
shaped fragments of various size and breadth, the greater part of 
which were dead when collected. The largest fragment obtained 
has a radius of 28.5 mm, its breadth is 32 mm. In the central 
part of many of these wedge-shaped fragments new lobes have 
been formed in the usual way. Some specimens are composed of 
almost equal lobes. 
Fungia laciniosa nov. sp. 
(PI. V, figs. 15-17 and 23). 
Localities: D. Exp. t. Kei I si.: Banda, between Neira and Goe- 
noeng Api, 20—30 m, 26 ex. (including a stalked anthoblast.) 
Corallum more or less circular, comparatively thin, especially 
in the marginal parts. Wall imperforate. Aboral surface flat or 
slightly concave. Marginal parts of the costae forming small lamellae 
covered with minute spines, every fourth costa is more prominent 
than the interjacent ones. Towards the centre the costae become 
less prominent, the central part of the aboral surface is densely 
covered with minute spines. The outline of the scar which is visible 
in most specimens, is less distinet in the larmer specimens, in some 
cases it has vanished. Oral surface more or less curved, sometimes 
the central part a little elevated. Length of the axial fossa about 
twice its breadth. The columella is rudimentary, consisting of some 
irregular papillae. Septa presenting a very peculiar ragged appea- 
rance; they are irregularly fenestrated, with dentations separated 
by conspieuous incisions; their sides are irregularly thickened and 
granulated, the whole presenting thick, porous lamellae with an 
almost spongy appearance. The central parts of the septa of the 
fourth and higher cycles have fused with one of the preceding 
cycle, which after this fusion suddenly becomes mueh lower. No 
distinet tentacular lobes. Synapticulae clearly visible, well developed. 
Figs. 15 and 16 show the upper surface of one specimen and 
