Acropora, Oken, 1815

Wallace, Carden C., Done, Barbara J. & Muir, Paul R., 2012, Revision and catalogue of worldwide staghorn corals Acropora and Isopora (Scleractinia: Acroporidae) in the Museum of Tropical Queensland, Memoirs of the Queensland Museu Nature 57, pp. 1-258 : 172

Acropora rudis (Rehberg, 1892)

( Fig. 84 )

Madrepora rudis Rehberg, 1892: 41, pl. 4 fig. 9.

Type locality. Ceylon (Sri Lanka) (holotype NMB).

MTQ Holdings. Maldives: G60273; Sri Lanka: G55223–24, G55577–78; Bangladesh: G50567; Thailand: G37293, G37302, G55983–84, G56094–97, G61757; Indonesia: G47165–66 Sumatra.

Species group: rudis.

Description. Colony outline: indeterminate, predominantly arborescent. Branches: tertiary branching order absent; length: 5 0–100 mm; diameter:>19.9 mm, axial-dominated, tapering; radial crowding: some touching; axial/radial

ratio:>1:10. Axial corallites: greater than three synapticular rings; not porous; outer diameter 2.6–4.1 mm; inner diameter 0.6–1.2 mm; primary septa to ¾ R. Radial corallites: very large; greater than three synapticular rings; one size or graded; inner wall developed; shape: rounded tubular; openings: oval-rounded; primary septa to ½ R. Coenosteum: same on and between radials: reticulate; spinule shape: elaborate.

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

Figures

FIG. 84. Acropora rudis, G60273, Vabbinfaru I., N. Male Atoll, Maldives, 2006 (photo: P. Muir). Map of documented distribution: blue squares = MTQ specimens; pink squares = literature records; orange diamonds = type localities (where given), including primary synonyms.