Acropora retusa (Dana, 1846)

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 : 164

Acropora retusa (Dana, 1846)

( Fig. 80 )

Madrepora retusa Dana, 1846: 462 .

Acropora pocilloporina Wallace 1994 ,: 962, fig. 2.

Type locality. Fiji (holotype NMNH-SI).

MTQ Holdings. G44042 HOLOTYPE of A. pocilloporina , G35534, G35537–38 PARATYPES of A. pocilloporina from Moorea, French Polynesia; G35947, G36077 PARATYPES of A. pocilloporina from the Cook Is.; Seychelles: G47958; Aldabra: G36936; Mauritius: G51879, G51881–82, G54531–32; Madagascar: G62211; Palau: G60197; Guam: G63328; Micronesia: G59286, G62421–23, G62612–13, G62630, G62687 Pohnpei; G62734–35, G62750–51 Kosrae; Niue: G55000–01, G54999, G36031, G36090, G36100, G39528, G49015–17; Cook Is.: G35851, G35926, G36096–99, G36113, G36126; French Polynesia: G35551, G56724–28, G58625–28, G58772; Tahiti: G54700; Austral Is.: G35840, G35842; G63146–47; Pitcairn Is.: G49064–68, G54643.

Species group: humilis .

Description. Colony outline: determinate, predominantly corymbose. Branches: tertiary branching order absent; length: 2 5–50 mm; diameter: 10.0–19.9 mm, axial-dominated, terete; radial crowding: some touching; axial/radial ratio:>1:10. Axial corallites: three synapticular rings; not porous; outer diameter 2.1–2.6 mm; inner diameter 0.7–0.9 mm; primary septa to ½ R. Radial corallites: medium; three synapticular rings; one size or graded; inner wall developed; shape: tubular; openings: dimidiate; primary septa to ¼ R. Coenosteum: same on and between radials: open spinules; spinule shape: blunt irregular.

Further literature. Wallace (1999), Veron (2000), Pillay et al. (2002).

Figures

FIG. 80. Acropora retusa, G62613, Pohnpei, Micronesia, 2009 (photo: P. Muir). Map of documented distribution: blue squares = MTQ specimens; pink squares = literature records; orange diamonds = type localities (where given), including primary synonyms.