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Dis t rib uti 0 n : Red Sea ; Seychelles; South Africa; Lakshadweep; Cocos-Keeling Isis.; Java; Great
Barrier Reef; Solomon Isis.; Marshall Isis.; Funafuti (GARD INER, 1898);COOK Isis. (STODDART & PILLA I,
1973); Tahiti.
Rem ark s: Though the present species seems to be well defined , it appears to display reasonable
skeletal variations. It may be that P. profundacella, P. superftcialis and P. nierstraszi form a single species
with P. haimeana, an opinion whi ch was already expressed by MATTHAI (1948 : 187). VERON & PICHON
( 1976) have figured the type of P. profundacella, and their description and discussion on the skeletal
variation of P. profundacella suggest that it is not clearly separable from P. haimeana. P. superftcialis is
also closely related and forms along with P. nierstraszi and P. samoerlsis a single series broken o nly on
possible skeletal variations. However, we list P. profundacella and P. nierstraszi separate in this work, since
the material we have examined is not sufficient enough to give positive evidence to our concept.
Psammocora explanulata v. d . HORST, 1922
( P l at~ I. Fig. 9)
Psammocora expltmillata 1922, Y. d. HORST, 426; pl. 3217. 8 (Type locality: Providence Ist.).
1954. WELLS. 410, pI. 15119. 10.
1976. VERON & PICHON, 28; figs. 27 - 32.
19S0. HEAD. 14S, 442.
We could examine on specimen, collected by Dr. KUEHLMANN , Berlin, o n the Wingate Reef in a
depth of about 30 m.
Mat e ria I: Central R. S.: Berlin 2MB 7009 (Wingate Reef, 30 mi.
Dis t r i b uti 0 n: Red Sea; Amirantes; Providence lsI. ; Reunion; Great Barrier Reef; Marshall Isis.
R em ark s: This is the first record of this species in the Red Sea.
Family Astrocoeniidae KOBY , 1890
Stylocoeniella is the only Indo-Pacific genus of this family. Two species of Stylocoeniella are described
in literature, viz S. armata and S. guentheri. Both are represented in the Red Sea.
Genus Stylocoeniella Y ABE and SUG IYAMA , 1935
Ty pe s pee i e s: Porites armata EHRENBERG , 1834 = Stylocoenia banzawai Y ABE & SUGIYAMA ,
1933.
G e n e ric c h a rae t e r s: Encrusting, surface with or without gibbosities. Calices 0.5 to 1.4 mm in
diameter with two cycles of septa and a styliform columella. Septa dentate. Intercalicular areas with
prominent spines. Surface spiny.
The two hitherto known species differ in the size of the calices and the degree of development of
septa.
Synopsis of the two species of Stylocoeniella:
I . Calices 0.8 to 1.4 mm in diameter. 12 nearly equal speta. Intercalicinal elevations are granulated
spines. . .. .. . ...... . ....... . . .... . .............. . .. .. ... .... ... .... .. . .. S. armata
2. Calices 0.5 ro I mm . Only 6 septa prominent, second cycle of septa weakly developed. Intercalicinal
elevations are styliform pillars .. .. . .. . . . . . . . . . . .. ... . .... ... ... .. ..... .. . . .. S. guentheri
Stylocoeniella armata (E HRENBERG ), 1834
Porites
Stylopbora
armata
armata
(Plate 2. Fig. 1)
1834. EHRENBE RG. 343 (Type locality: Red Su).
IS51. M1u-.E EDWARDS (& HA1ME) , 13S.
1879. KLUNZINGER 2, 66; pI. 8/12.