GARDINER—MADREPORARIAN CORALS. 271 
The measurements (in millim.) of the specimens are as follows :— 
| Length. Breadth. Height, pean pies 
MAM TNGREMI |, | cual all adaale & 
ipa 52 | 46 23 15 220 
ae 30 31 18 13 152 
3 31:5 32 14 12 155 
4 28 28°5 9 8 140 
5 29 27 10°5 10 152 
6 2 23°5 12°5 7 128 
Uh 27°5 25:5 9 9 162 
8 25 24 9 9 1438 
9 25 22 9 8 130 
10 25 21 11 8 122 
it 22°5 21°5 6 5 124 
12 yy 16°5 4 5 94 
13. 16 15:5 4 5 104 
Localities. Suez, 4 fms., and reefs off Port Sudan and Sawakin, both Red Sea, all 
collected by Mr. C. Crossland. Previously known from Egypt (recent subfossil deposits, 
Milne-Edwards § Haime), Hast Indies, New Britain, Great Barrier Reef, China Sea 
(28 fms.), and Philippines (10 fms.). A Déaseris-form is mentioned by Déderlein 
(= Diaseris mortont, Tenison-Woods, Proc. Linn. Soc. N.S.W. v. p. 459), but it appears 
to me to be doubtful. Bourne (Ceylon Pearl Oyster Report, pt. iv. p. 201) records 32 
specimens of the Cycloseris-form from Ceylon, varying up to 42 mm. long and 19 mm. 
high ; it is possible that some of these specimens may belong to F. costulata, Ortmann, 
as its young forms are almost certainly very close to those of F. cyclolites. 
The specimens from the Maldives recorded as belonging to this species really belong 
to F. costulata and F. cooperi, mentioned later. 
7. Fungia costulata, Ortmann. (Plate 35. fig. 9.) 
Zool. Jahrb. Syst. iv. p. 54, t. 14. fig. 2. 
Cycloserrs cyciolites (pars), Gardiner, Fauna and Geogr. Maldives & Laccadives, p. 944, pl. 91. 
fig. 19. 
As already mentioned, the re-examination of my former collections has shown that I 
had two species described under the name C. cyclolites, neither of which really belongs to 
it. ‘The largest specimen (no. 1, length 65 mm., breadth 59 mm., height 22 mm., extreme 
length of axial fossa 19 mm., and number of septa about 216) corresponds closely with 
