Acropora russelli Wallace, 1994

(Fig. 85)

Acropora russelli Wallace, 1994: 983, fig. 26.

Type locality. Cartier Reef, Timor Sea.

MTQ Holdings. HOLOTYPE G40795, PARATYPES G40782, G40794, G40796–97 Timor Sea, Australia; Mauritius: G59353; Sri Lanka: G55765; Indonesia: G51486–97, G52422, G63169–71 Halmahera; G60745 Irian Jaya.

Species group: elegans

Description. Colony outline: indeterminate, predominantly free living arborescent. Branches: tertiary branching order absent; length: 25–50 mm; diameter: <2.5 mm, 50/50 axial/radial, terete; radial crowding: not touching; axial/ radial ratio: <1:10. Axial corallites: two synapticular rings; not porous; outer diameter 1.6–2.2 mm; inner diameter 0.5–1.0 mm; primary septa to 1 R. Radial corallites: small; two synapticular rings; one size or graded; inner wall developed; shape: appressed tubular; openings: oval-rounded; primary septa to 2/3 R. Coenosteum: same on and between radials: dense spinules; spinule shape: elaborate.

Further literature. Wallace & Wolstenholme (1998), Wallace (1999), Veron (2000).