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).