217 
In the smallest specimens the granules of the lower surface 
are very inconspicuous, almost microscopical, and the costae of 
the lower cycles are hardly stronger developed than those of the 
higher cycles. In the larger specimens the costae of the lower 
cycles become more prominent and appear broader on account of 
several irregular rows of granules and small spines. 
The central part of the oral surface of the two largest specimens 
in the collection is slightly elevated, the lower surface and the 
marginal part of the upper surface are almost quite flat. To a 
certain extent therefore the general appearance of these specimens 
differs from those described by Dod erle in. Also in the specimen 
from the Leiden Museum (cf. V a n der Horst 1921, p. 11) the 
lower surface is almest flat, whilst the upper surface is evenly convex. 
One specimen has two mouths, separated by a zone with short 
irregular septa, probably the result of fission of the original mouth 
into two halves. 
Fungia concinna Verrill. 
Fungia plana Doderlein 1902. 
Fungia concinna Doderlein 1902. 
Fungia concinna van der Horst 1921. 
Localities: D. Exp. t. Kei Isl.: Doelah laut, reef, 7 ex.; Oeboer, reef, 
1 ex.; Banda, 0—2 m, 17 ex. 
Besides the specimens of F. granulosa already dealt with there 
are in my material 47 specimens of Dbderlein’s repanda-gvonp. 
Many of these are typical representatives of F. concinna and F. 
repanda as these are defined by Doderlein, some other speci¬ 
mens can easily be identified with F. plana Studer, but a large 
number of specimens do not fit in exaetly with one of Doder- 
lein’s species. F. scabra Doderlein is not represented in my material. 
Among the specimens in my material there are a few in which 
the Wall is strongly perforated and which therefore have to be 
classified with F. repanda^ although in general appearance and in 
the structure of their septa and costae they are mueh more like 
F. concinna. In a very limited area on the reef of Lontor (Banda) 
I collected 25 specimens showing phenomena of regeneration, 16 
of which are strongly perforated and 9 more or less solid. A 
remarkable faet is that the regenerated younger parts in F. 
