GARDINER—MADREPORARIAN CORALS. 275 
fe Repanda-group. 
1l. Fungia cooperi, sp.n. (Plate 35. fig. 10.) 
Cycloseris cyclolites (pars), Fauna and Geogr. Maldives & Laccadives, p. 944, pl. 91. figs. 17, 18. 
Corallum small, massive, and thick, heavy, almost circular, generally strongly arched. 
Wall imperforate. Coste rather low and small, of two or three sizes, not markedly 
prominent, towards the centre running into lines of coarse granulations. All costee 
very granular on their sides and edged with low, small, blunt spines, which are covered 
with coarse granules, their ends appearing somewhat swollen. Central area almost bare, 
or covered with similar spines. The axial fossa little elongated, deep but relatively 
open, terminating below in a columellar meshwork of fine trabecule from the septal 
edges, appearing granular on the surface. Septa of six cycles, nearly complete in all 
the specimens, with some septa of the seventh cycle in the larger. Septa of cycles I 
and II rather more prominent round the axial fossa than those of ITI, those of all three 
cycles ending perpendicularly. Septa of cycle VII fused towards the axial fossa to 
those of cycle VI, which again are fused to those of cycle V, septa of cycles VI and V 
outside point of fusion becoming thicker and higher so that at edge of corallum all the 
septa except those of the last cycle are of approximately equal thickness and height. 
Septal sides covered with tiny granules, running sometimes into low ridges for 1-2 mm. 
below their edges, corresponding to teeth on the same so minute that the edges (except 
with a strong glass) appear almost entire. 
The dimensions (in millim.) of the specimens are as follows :— 
1 2. 3 4. 5. 6 
eee Conboudnes 52 49 37 38 41 36 
iBreadtienmiae cites 49 47 37 34 36 33 
Meisho vnc cieses 24 23 25 15 23 13 
No. of septa ...... 310 | 270 | 210 | 205 | 190 | 185 
Localities. Nos. 1, 2, 3, and 6, Hulule, Male Atoll, and Nos. 4 and 5, Turadu, 
Mahlosmadulu Atoll, both Maldive Archipelago. 
The six specimens here described present the massive appearance—the scar is only 
visible on the smallest—characteristic of adult reef-living Fwngia, and are certainly 
quite distinct from any of the 128 specimens from the Maldives and the Laccadives 
referred to other species of this genus. They belong to the Repanda-group, their nearest 
ally perhaps being Ff. scabra, Déderlein. Measurements of the axial fossa are worthless. 
The columella is about three times as long as broad in the largest specimen, being about 
9 by 3 mm. 
38* 
