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 halmaherae Wallace & Wolstenholme, 1998 ( Fig. 39 ) Acropora halmaherae Wallace & Wolstenholme, 1998: 258 , fig. 54. Type locality. Halmahera, Indonesia. MTQ Holdings. HOLOTYPE G51513, PARATYPES G51509–12 Indonesia; Indonesia: G63172 Halmahera; G61285, G63114, G57110 Irian Jaya; Papua New Guinea : G53312–15; Micronesia: G59272, G59302–05, G59643, G59649, G62574–77, G62604, G62692–93, G62820 Pohnpei; Marshall Is.: G57232. Species group: horrida . Description. Colony outline: indeterminate, predominantly arborescent. Branches: tertiary branching order present; length:>1 0 0 mm; diameter: 5.0–9.9 mm, 50/50 axial/radial, terete; radial crowding: not touching; axial/radial ratio:>1:10. Axial corallites: two synapticular rings; porous; outer diameter 1.3–2.2 mm; inner diameter 0.6–0.9 mm; primary septa to 2/3 R. Radial corallites: small; two synapticular rings; one size or graded; inner wall developed; shape: tubular; openings: oval-rounded; primary septa to 2/3 R. Coenosteum: same on and between radials: costate; spinule shape: elaborate. Further literature. Wallace (1999), Veron (2000).