Revision and catalogue of worldwide staghorn corals Acropora and Isopora (Scleractinia: Acroporidae) in the Museum of Tropical Queensland Author Wallace, Carden C. Author Done, Barbara J. Author Muir, Paul R. text Memoirs of the Queensland Museu Nature 2012 2012-06-30 57 1 258 journal article 28769 10.5281/zenodo.2163512 efa6ed42-a9c8-4eb7-909e-81fb4091b243 0079-8835 2163512 Acropora simplex Wallace & Wolstenholme, 1998 ( Fig. 90 ) Acropora simplex Wallace & Wolstenholme, 1998: 358 , fig. 154. Type locality. Togian Islands, Sulawesi, Indonesia. MTQ Holdings. HOLOTYPE G51188; Indonesia: G57095, G57103, G57109 Irian Jaya; Philippines: G55122; Micronesia: G59289, G59651, G59653 Pohnpei. Species group: loripes . Description. Colony outline: determinate, predominantly plate. Branches: tertiary branching order absent; length: 50–100 mm; diameter: 2.5–4.9 mm, 50/50 axial/radial, terete; radial crowding: not touching; axial/radial ratio: <1:10. Axial corallites: three synapticular rings; not porous; outer diameter 1.4–1.8 mm; inner diameter 0.6–0.8 mm; primary septa to 1/3 R. Radial corallites: medium; three synapticular rings; one size or graded; inner wall developed; shape: appressed tubular; openings: oval-round- ed; primary septa to ¾ R. Coenosteum: same on and between radials: dense spinules; spinule shape: elaborate. Further literature. Wallace (1999), Veron (2000), Turak & DeVantier (2011).