PDF - Eprints@CMFRI

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Material :
Northern R. S.: HLM Fri 109-1 (Sharm esh Sheikh, 95 m).
Distri butio n : Red Sea ; Maldives; Indonesia; Palau Isis.; Great Barrier Reef; Marshall Isis. ; Fiji ;
Samoa.
Genus Gardineroseris SCHEER and PILLAI, 1974
T Y pes p e c i e s : Agaricia (Undaria) plmlUlata DANA, 1846.
G e n e ric c h a r act e r s : Encrusting, tending ro become massive. Cerioid with solid acute walls.
Calices polygonal, mono- ro trisromodaeal. Corallites 4 ro 6 mm in diameter when monosromodaeal,
2 ro 4 mm deep . epta numerous, higher cycles unite with the lower cycles before the latter unite with
a styliform columella placed in the centre of a sma ll axial fossa. Septa subequal in thickness, arrangemenr
more or less as in Siderasrreidae.
The genus is known ro include a single species, G. planulata. 1901 VERRILL has given the first figure
of the species. In 1905 GARDINER established a new species Agaricia ponderosa with a variety minikoiensis.
VABE, SUGIYAMA & EGUCHI (1936) separated the two, but their Agaricia ? minikoiensis is
idenrical with Leptoseris mycetoseroides. MA (1937) placed A. minikoie11sis in a new subgenus Agariciella.
WELLS (1936) poinred out that planulata, ponderosa and var. minikoie1lSis are one and the same
and placed them ro Pavona, subgenus Polyastra. UMBGROVE ( 1939 ) believed he could separate planulata
and ponderosa on grounds of small differences in the columella.
In the following years the name ponderosa was used: Pavona p. by MATTHAI (1948), Pavona (Polyastra)
p. by DURHAM (1962), Agariciella p. by ROSEN (1971) and by LOYA & SLOBODKIN (1971), and
finally Gardineroseris p. by SCHEER & PILLAI ( 1974). HEAD (1980) used again Agariciella p., while
VERON & PICHON (1980) returned ro the older name planulata. The presenr authors think that ponderosa
and planulata are the same, and that planulata has priority.
While proposing the generic name we made two statements which are unscienrific, and we take this
opportunity ro correct them . First, the septal arrangement of Gardineroseris is more like Siderasrreidae
than Thamnasrreidae. Second, we made a statemenr to the effect that WELLS ' (1956) inclusion of Agariciella
MA , 1937, in Leptoseris is incorrect. We regret this mistake, WELLS is fully justified.
Agaricia
Asteroseris
Pavo,tQ (Polyastra)
Gardjn ~roseris
Agaricia
Aga,icia ?
PQvonQ
PQf)onll (Poly·
as/'lIJ
Agariciella
Cardjnero seris
AgQridellll
planulattJ
planulata
planulata
pfanulata
ponderom
ponderoSQ
Gardineroseris planulata (DANA ), 1846
1846. DANA, lJ8.
(Plate 14. Figs. 8 , 9)
1901 , VERRILL, 156. pI. 27 /8,8a.
1936. WELLS. 549; pI. 1011 - 3.
1980, VERON&PICHON,68;figs. 12 1- 12S ; 14S.
1905. GARDINER, 937: pI. 89/ S. 6.
Vir. miniJwiens;s 1905 . GARDINER. 938; pI. 90/7.
ponderosa 1936, YARE. SUGIYAMA & ECUCHI. 55; pis. 27/ S; 38/ 1; 52/1.
ponderosa 1948. MATTHAI. 182; pI. 6 / 18 . 19 , 21 - 24.
ponderosa 1962 . DURHAM, SO : fig. s.
pondl!rosQ
pondero sa
ponderosa
1971 . ROSEN. III.
1911. LOVA & SLOBODKIN. 123.
1914. SCHEER & PILLAl. 32 ; pI. IS/ I , 2.
1976. PI LLAI & SC HEER. 41.
1980. HEAD, 149. 451.
Corallum encrusting, edges free thus looking like a folium . Underside wherever free is covered by an
epitheca, which srops about 5 mm from the growing edge. Corallites 5 ro 7 mm in greater length, polygonal,
with equal depth. Septa generally about 70, but up to 100 in a large calyx, subequal at the wall ;
higher cycles unite with the immediate lower cycle. 14 to 17 septa reach the columella. Axial fossa about
0.5 mm in diameter, sometimes filled by a styliform columella. Sides of septa minutely granulated .