188 
in the works cited under each of the species. The arrangement of the 
species is chiefly based upon Doderlein’s (1902) monograph on 
this genus. 
Fungia hexagonalis M.-E. & H. 
(PI. V, figs. 1-11, PI. XI, figs. 136, 137). 
Fangia hexagonalis Milne Edwards & Haime 1848. 
Cycloseris hexagonalis Milne Edwards & Haime 1851. 
Cycloseris hexagonalis Milne Edwards 1860. 
Cycloseris tennis Moseley 1881. 
Fungia patella Doderlein 1902 p. p. 
Fungia patella van der Horst 1921 p. p. 
Fungia tenuis Boschma 1923 c. 
(non: Fungia tenuis Dana 1846!) 
Localities: D. Exp. t. Kei I si.: Banda Islands, chiefly between 
Goenoeng Api and Neira, but also some specimens off Lontor, 
10—30 m, 512 ex. 
In a previous paper (1923 c) I have identified the specimens 
in my material, which belong to F. hexagonalis, with F. tenuis Dana. 
The figure and the description of this form by Dana made it 
highly probable that the specimen was identical with F. hexagonalis, 
especially on account of the faet that Dana mentioned the undulating 
margin as one of its peculiarities. Moreover the specimen figured by 
Moseley, referred by this author to F. tenuis, undoubtedly was 
a representative of F. hexagonalis. 
After I have studied the type-specimen of Fungia tenuis in the 
United States National Museum I am convinced that it belongs to 
quite a different form, and even that Fungia tenuis does not belong 
to the patella-group. Probably the specimen is a young form of 
one of the larger Fungiae. The lower and upper surface of the 
type-specimen of F. tenuis is represented in figs. 136 and 137. The 
costae are visible as small ridges in the marginal part. The scar 
of detachment is, though very vaguely, still visible in the central 
part. It is comparatively large (diameter about 7 mm). The septa 
have a sharp edge with only small dentations. The marginal part 
of the corallum is very thin, but this peculiarity is usually seen 
in recently detached coralla of the larger species of Fungia. 
Consequently the specimens in my material have to keep the 
name Fungia hexagonalis M.-E. & H. The characteristics of this 
species have been sufficiently dealt with in my above-cited paper, 
