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2. Corallum mainly flabelloid with long valleys, 15 to 25 mm wide and deep. Septa highly exserr, edges
entire. Columella absent. Series separated into independent flabellate branches ...... . . .. Plerogyra
3. Corallu m mainly meandroid , details as in Plerogyra , but series closely united by walls . ... Physogyra
4. Corallum explanate, pedunculate, meandroid. Valleys 6 to 10 mm wide. Collines thin with a middlegroove
.. . ......... .................... . ........ . ...................... . Gyrosmilia
Genus Euphyllia DANA, 1846
Type s pecie s: Caryophylliaglabrescens CHAM ISSO & EVSENHARDT, 1821.
G e n e ric c h a r act e r s : Phaceloid, branches free throughout the length , diverging. Corallites
monocentric (20 to 30 mm in diameter) or forming valleys, very deep. Septa very thin, slightly exsert,
edges entire, sides smooth. Columella absent.
With regard to the list of synonyms of the several species a far-reaching agreement exists between the
different authors as VAUGHAN (19 18), MATTHAI (1928), CHEVALIER (1971) and VERON & PICHON
(1980). The only greater difference is the position of E. turgida. MATTHAI considers it as a particular
species, VAUGHAN and CHEVALIER put it to E. fimbriata , and VERON & PICHON to E. glabrescens.
The present authors agree with this latter opinion, because E. glabrescens and E. turgida are mostly
phaceloid with mono-, di- or tristomodaeal corallites. On the other hand, E. fimbriata is mainly phacelloflabellate
with more or less long meandroid valleys. Moreover another phenomenon justifies this decision,
too.
VERON & PICHON (1980) subdivide the genus Euphyllia in two subgenera: 1. Euphyllia with E.(E.)
glabrescens and E. (E.)cristata, and 2. Fimbriaphyllia with the new species E. (F.)divisa and E. (F.)ancora
instead of E. fimbriata . They make the interesting statement, that these two new species can be distinguished
only by the tentacles of their polyps and that, in this regard, they are unique in scleracrinian
taxonomy. E.(F.)divisa has long tentacles, thick at their base and dividing and branching with light caps.
The polyps of E.(F.)ancora have long tentacles with pale caps which are curved or crescentic in shape,
wheteas the tentacles of E.(E.)glabrescens (including E. turgida) and E. (E.)cristata are long and tubular
with white ends.
Caryopbyllw
Eupbyllia
Euphyllia glabrescens (CHAMISSO and EVSENHARDT), 1821
glabresuns
glabrescens
lurgida
(Plate 37, Figs, 1- 3)
1821 , CHAMISSO & EYSENHARDT. 269; pI. H / IA,B (Type locality : Raddak lsI.. Australia),
1904. GARDINER, 759.
1918, VAUGHAI'Ir,j , 82 j fig. liP!. 26/2, 3. 3a..
1928, ft\A TTHAI. 174; pis. 3117-21; 42/ S; 4414 ; 62/9 (synonymy).
1952, CROSSLAND. 104; pI. 2/6.
1971, CHEVALIER. 26 ; pi s. 1/ 3; 3/ 3.
1974. SCHEER & PILLA!. 61.
1976. PILLAI & SCHEER. 69.
1980, VERON & PICHON, 342 ; figs. 606-610, 822 (lop right), 823.
1911 , GRAVIER, H i P!. 2/5- 8.
1846. DANA, 166; pI. 6/ 4.
1904, GARDINER, 7.59.
1928, MATTHAI, 117; pis. 40/2; 5212; 59/2 (synonymy).
1976. PI LLAI & SCHEER. 70.
One specimen in the present collection was labelled by the late Peter WETTSTEIN as E. turgida. The
specimen was collected by N. GUNDERMAN at a depth of 60 m. It is represented by four corallites, two
of them s e~~rate and the others a branch wah two corallites. The general appearance is similar to the one
from MauritIUS , figured by MATTHAI (I928 , pI. 52, fig. 2) under E. turgida. All the corallites are monostomodaeal
and range from 19 to 30 mm in greater diameter. The wall is very thin. There are 7 to 10 septa
per cm length of the wall, of which 4 ro 5 are larger than the others. Major septa about 1.7 mm exsert,
not swollen at the wall. At the bottom of the calyx they turn left or right and extend to the centre of the