Cycloseris hexagonalis
Creators: name: Lane, David J. W.
name: Hoeksema, Bert W.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Scleractinia
Fungiidae
Cycloseris
Cycloseris hexagonalis

description: <i>Cycloseris hexagonalis</i> (Milne Edwards &amp; Haime, 1848) (Figs. 3A–D) <i>Fungia hexagonalis</i> Milne Edwards &amp; Haime, 1848: p. 89, pl. 6 Figs. 2–2f <i>Cycloseris hexagonalis</i> – Milne Edwards &amp; Haime, 1851: p. 113; Veron, 2000 (partim.): p. 239, Fig. 4; Gittenberger et al., 2011: Table 7; Hoeksema, 2012a: Fig. 6; Hoeksema, 2014: 75. <i>Fungia</i> (<i>Cycloseris</i>) <i>hexagonalis</i> – Hoeksema, 1989: p. 59–64, Figs. 123–135, 613; Hoeksema, 1993a: 5; Hoeksema &amp; van Ofwegen, 2004: [4 Figs.] <i>Fungia hexagonalis</i> – Hoeksema, 2008: Fig. 8. <b>Material examined.</b> Five specimens, collected by DJWL 8 November 2014 at 32 m depth, South China Sea, Mampak Patches, North Patch: N05°02.305’ E114°26.449’. Habitat: reef top, silty sand and rock amongst gorgonian fan corals and whip corals. Monostomatous and free-living. Skeletal diameters (maximum) range from (1) 58 mm; (2) 62 mm; (5) 64 mm; (3) 65 mm; (4) 66 mm. Specimens are lodged with following Catalogue Numbers and Institutions: 1 &amp; 5: RMNH Coel.42102 @ RMNH; 2: UBDM.6.201411.1 @ UBDRC; 3 &amp; 4: ZRC.CNI.1008 &amp; ZRC.CNI.1009 @ LKCNHM. All specimens are full-grown with the corallum outline irregularly circular or slightly oval, but with marked upwardly-directed undulations giving an irregularly concave shape to the thin corallum (Figs. 3A–D). In one specimen (RMNH Coel.42102b) the under faces of two of the four corallum folds are completely fused (Fig. 3D). Septa tightly packed with lower order ones thick, exsert and solid. Thin, higher order septal fenestrations, if present, not visible due to dense packing of septa. Septal margins of lower series ornamented with fine conical or blunt dentations that grade into the dense granulations of the septal sides and are, in consequence, difficult to count. The marginal ornamentation of the fine septae shows coalescing expansions centrally. Small, pointed costal spines near the corallum margin generally number less than 50 per cm.
description: Published as part of <i>Lane, David J. W. &amp; Hoeksema, Bert W., 2016, Mesophotic mushroom coral records at Brunei Darussalam support westward extension of the Coral Triangle to the South China Sea waters of Northwest Borneo, pp. 204-212 in Raffles Bulletin of Zoology 64</i> on page 207, DOI: 10.5281/zenodo.5355079
description: {"references": ["Milne Edwards H &amp; Haime J (1848) Recherches sur les polypiers. Mem. 1. Observations sur la structure et le development des polypiers en general. Annales des Sciences Naturelles. Zoologie. Series 3, 9: 37 - 89, pls. 4 - 6.", "Milne Edwards H &amp; Haime J (1851) Recherches sur les polypiers. Memoire 6. Monographie des Fongides. Annales des Sciences Naturelles, Zoologie, Series 3, 15: 73 - 144.", "Veron JEN (2000) Corals of the World. 2. Australian Institute of Marine Science, Townsville, 429 pp.", "Gittenberger A, Reijnen BT &amp; Hoeksemsa BW (2011) A molecularly based phylogeny reconstruction of mushroom corals (Scleractinia: Fungiidae) with taxonomic consequences and evolutionary implications for life history traits. Contributions to Zoology, 80: 107 - 132.", "Hoeksema BW (1993 a) Mushroom corals (Scleractinia: Fungiidae) of Madang Lagoon, northern Papua New Guinea: an annotated check list with the description of Cantharellus jebbi spec. nov. Zoologische Mededelingen Leiden, 67: 1 - 19.", "Hoeksema BW &amp; van Ofwegen LP (2004) Fauna Malesiana: Indo- Malayan reef corals: a generic overview. World Biodiversity Database CD-ROM Series, ETI, Amsterdam.", "Hoeksema BW (2008) Stony corals (Fungiidae). In: Hoeksema BW &amp; van der Meij SET (eds.) Cryptic marine biota of the Raja Ampat island group. Naturalis, Leiden. Pp. 8 - 12."]}