綜合描述
單體珊瑚,珊瑚體質地脆弱易碎,外觀呈圓盤狀或碟狀,平均珊瑚孔直徑39 mm,高18 mm。珊瑚體底部凹陷或扁平(底部扁平之個體較大,珊瑚孔直徑達50 mm,高14 mm),具顆粒狀突起。珊瑚體具有隔片5組(S1~S5)96片,呈六放排列,表面具有明顯皺褶,上緣具有高0.11 mm的三角形齒狀突起,每個突起間距約為0.28 mm。隔片(S1)最大,上緣末端具有20~23個棘狀突起,突起大小與中柱距離成正比,距離中柱第10或11片最大(底部扁平個體的棘狀突起數約14~19個,以距離中柱第7或9片最大),末端與中柱連接;S2略小於S1;S3稍微傾斜生長,上緣具有12個片狀突起;S4最小,高度約S3的1/2;S5缺乏片狀構造,呈退化狀。S1側邊具有13~15個突片,距離中柱第7至9片最高。中柱略微凹陷,邊緣與隔片末端連結,直徑約4.5 mm。籬片大小及數量變異大,P2與S2~S3末端癒合成傘篷構造(canopy),約6片,寛1.0 mm;P3位於S3~S4末端癒合處前端,約12片,寛2.5~3.0 mm。肋片細長,呈波浪彎曲狀生長,各肋片大小相近,平均寛度介於0.8~1.0 mm,各肋片間距約0.75 mm,具有明顯顆粒狀突起。
參考文獻
Cairns SD (1989) A revision of the ahermatypic Scleractinia of the Philippine Islands and adjacent waters, Part 1: Fungiacyathidae, Micrabaciidae, Turbinoliinae, Guyniidae, and Flabellidae. Smithsonian Contr Zool 486, 136 p.
Cairns SD, Parker SA (1992) Review of the recent Scleractinia (Stony Corals) of South Australia, Victoria and Tasmania. Rec S Australian Mus Mono Ser 3, 82 p.
Cairns SD, Keller NB (1993) New taxa and distributional records of azooxanthellate Scleractinia from the tropical south-west Indian Ocean, with comments on their zoogeography and ecology. Ann S Afr Mus 103: 213-292.
Cairns SD (1994) Scleractinia of the temperate north Pacific. Smithsonian Contr Zool 557, 150 p.
Cairns SD (1995) The marine fauna of New Zealand: Scleractinia (Cnidaria: Anthozoa). N Z Oceanographic Mem 103, 210 p.
Cairns SD (1998) Azooxanthellate Scleractinia (Cnidaria: Anthozoa) of western Australia. Rec West Austr Mus 18: 361-417.
Cairns SD (1999) Cnidaria Anthozoa: Deep-water azooxanthellate Scleractinia from Vanuatu and Wallis and Futuna Islands. Mem Mus Natl Hist Nat Paris 180: 31-167.
Cairns SD (2004) Azooxanthellate Scleractinia of Australia. Rec West Austr Mus 56: 259-329.
Cairns SD, Zibrowius H (1997) Cnidaria Anthozoa: Azooxanthellate Scleractinia from the Philippine and Indonesian regions. Mem Mus Natl Hist Nat Paris 172: 27-243.