Acropora roseni Wallace, 1999

(Fig. 83)

Acropora roseni Wallace, 1999: 246, pl. 60.

Type locality. Aldabra, Seychelles (holotype MTQ). MTQ Holdings. HOLOTYPE G36948, PARATYPE G36947 Seychelles; Socotra: G58522; Seychelles: G59457, G59459, G59576.

Species group: aspera .

Description. Colony outline: indeterminate, predominantly arborescent. Branches: tertiary branching order absent; length: 5 0–100 mm; diameter: 10.0–19.9 mm, axial-dominated, tapering; radial crowding: most touching; axial/ radial ratio:>1:10. Axial corallites: three synap-

ticular rings; porous; outer diameter 2.9–3.7 mm; inner diameter 1.2–1.6 mm; primary septa to 1/3 R. Radial corallites: large; three synapticular rings; one size or graded; inner wall not developed; shape: dimidiate/lipped; openings: cochleariform; primary septa to ¼ R. Coenosteum: different on and between radials: between radials: reticulate, on radials: costate; spinule shape: single point.

Further literature: Veron (2000).