GARDINER—MADREPORARIAN CORALS. 247 
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numbers to deal with. Imperforate and perforate forms, forms with minute and 
relatively large teeth, forms with costee approaching equality and unequal cost, oval 
and round forms, &c. come both from the Chagos and the Seychelles. While the septal 
teeth are generally rather angularly pointed, one imperforate specimen has rather 
squarish, very rough teeth on some of its septa near. the fossa, 10-12 in one em.; and a 
second has angular teeth on some septa, squarish on others, the latter passing into 
extraordinarily rough granulations. One of the perforate specimens is similar, but 
nowhere shows the rather pointed, angular teeth commonly found. The'septa in the 
species are especially brittle, tending to crack when specimens are boiled for cleaning. 
Localities. Salomon (6) and Egmont (6), both Chagos, Saya de Malha, C 16, 26 fms. 
(1), Praslin (11) and Mahé (15, collected by Mr. J. J. Lister), both Seychelles. The 
species appears to have its centre in the East Indies, ranging on the one side to Zanzibar 
and on the other to Samoa and perhaps Tahiti, 
The Rotuman specimen referred to in the synonymy is a form with some of its coste 
especially strongly developed and spinulose. 
14. Fungia repanda, Dana. 
Déderlein, Senckenb. naturfors. Gesellsch. Abhandl. xxvii. p. 115, tt. 12. & 18. 
Two specimens of this species, measuring 149 and 102 mm. long, by 153 and 98 mm. 
broad, by 45 and 31 mm. high, lie before me. I can add nothing to Déderlein’s most 
accurate and excellent description of the species, which appears to me to be quite 
distinct from F. concinna. 
Locality. Singapore, collected by the late Mr. F. P. Bedford. The species appears to 
have its centre in the East Indies, extending west to Ceylon and east to the Philippines 
and Fiji. It is not recorded by Marenzeller (Expeditionen S8.M. Schiff ‘ Pola,’ xxvi. 
Riffkorallen, 1906) from the Red Sea, nor has it been obtained by Mr. C. Crossland in 
his collection. 
15. Fungia fieldi, sp.n. (Plate 33. figs. 3, 4, and Plate 34. fig. 7.) 
Corallum large, very heavy, rather longer than broad and somewhat arched, wall 
perforated by numerous slits which extend to within about 1 cm. of the centre. Coste 
very variable in size, the first three cycles very thick, subequal in size, the rest graded. 
All are spined except those of the last two cycles, which at the edge of the dise end in 
angular teeth. The spines are thick, somewhat conical and massive columns, varying 
up to 6-7 mm. in height. Those on the costve of cycles I to III and on half or more of 
cycle IV are markedly compound, generally ending in two or three forks extending out 
in a plane at right angles to the direction of the coste. All are rather granular on their 
sides and tend to be minutely spinulose at their free ends. The central area, which is 
remarkably small, is sparsely covered with lower conical spines. 
Axial fossa somewhat elongated, very narrow, deep, septal edges ending perpendicu- 
larly against it; no columella. Septa of eight cycles, of which I-III (24 septa) are very 
thick, subequal, and reach the axial fossa. Remaining cycles of septa graded in thickness 
and height down to those of the last cycle, which are almost papery in appearance. All 
