Acropora intermedia (Brook, 1891)

(Fig. 46)

Madrepora intermedia Brook, 1891: 463; 1893: 31, pl. 1 fig. C.

Madrepora repens Rehberg, 1892: 36, pl. 4 fig. 8.

Acropora eminens von Marenzeller, 1906: 30, pl. 24 fig. 78.

Acropora vanderhorsti Hoffmeister, 1925: 70, pl. 18 fig. 2.

Type locality. Maldives (lectotype NHM).

MTQ Holdings. Red Sea: G54874–75, G54879, G54948 Yemen; Socotra: G56952, G56967, G56969; Comoros: G55094; Mayotte: G63198, G63342; Seychelles: G47957, G51857–58, G59446, G59461, G59473, G59498, G59505, G59508, G59510; Aldabra: G41073; Mauritius: G39787, G51830–36, G54472, G54909; Maldives: G59817–18, G59926–28; Sri Lanka: G55767, G55776, G56348–49; Thailand: G32783, G36144, G36150, G53658, G55935–42, G56077–79, G59418; Malaysia: G52619–20, G57678, G57684, G57762, G59145; Singapore: G41023; Indonesia: G48568–69, G48685–86, G49149–53 Sumatra; G32839, G32844, G59205 Java; G46702, G49156–57, G49164 Bali; G50909 Nusa Tenggara; G48575–81, G48690–91, G49155, G59081 Alor; G51693–94 Lomblen; G47432–33, G47842 Lombok; G49815–18 Riau; G51691–92 Tukangbesi Islands; G43816 Taka’bonerate; G50721–27 Seribu Is; G47028 Ambon; G48570–73, G48687–88, G49154 Flores; G49161–63, G49294, G49349, G50910 Kalimantan; G35519–21, G35813–14, G47418–31, G48157, G48161, G49158–60, G50808–0 9, G51678–81, G53689, G56507 Sulawesi; G51686–90, G53768–69 Molucca Sea; G51682–85, G52417, G59102 Halmahera; G47001, G47026–27, G47131, G47417 Banda Sea; G48574, G48689 West Timor; G36043 Irian Jaya; Australia: G36053–54, G38363, G38370, G38392, G40452, G48712–16, G52668, G60628, G60633, G60643, G61689 West; G48105–10, G48252, G48254, G51266–68, G58976, G58982–83 North; G27026, G27621–23, G27997–8003, G28233, G28236, G28238, G29139, G29413–17, G29419– 20, G30071, G30197, G31052–54, G34226, G35026, G37397, G39882, G40907, G47291–92, G50847, G51090– 91, G57517, G57535, G57729, G57732, G57736, G58067, G58116, G58182, G58908, G64674, G64716 Great Barrier Reef; G28234–35, G28237, G31050, G64998– 5000 South-East; G33512, G33520 Coral Sea; South China Sea: G37568, G48348, G52130–33, G52220–23, G52267; Japan: G36849, G38049, G38054, G47757, G48380, G62856–57; Taiwan: G43838, G43846, G47580, G47599; Philippines: G41948; Palau: G36233, G36531, G56644, G56858, G63116; Guam: G53652; Papua New Guinea: G52759–76, G52811–12, G53561 Micronesia: G40702–04, G40726, G40775 Yap; G36616, G36618–19 Chuuk; G38005, G40819, G40829–30, G62429–31, G62503, G62545, G62668, Pohnpei; G41086, G62733, G62770 Kosrae; Solomon Is.: G58596; New Caledonia: G33095, G34947, G41111, G58705, G58725, G58732, G59173; Kiribati: G33110, G54799, G54807, G54959, G54966; Tuvalu: G37556–57; Samoa: G34722, G34871, G36636, G41293, G43463, G43465, G43496, G43498, G54269, G56026–27, G56036; Niue: G35836; Cook Is.: G59700–02; Tahiti: G33085.

Species group: robusta.

Description. Colony outline: indeterminate, predominantly arborescent. Branches: tertiary branching order absent; length:>100 mm; diameter:>19.9 mm, axial-dominated, tapering; radial crowding: not touching; axial/radial ratio:>1:10. Axial corallites: two synapticular rings; porous; outer diameter 2.5–4.0 mm; inner diameter 0.8–1.5 mm; primary septa to ¾ R. Radial corallites: large; two synapticular rings; two sizes; inner wall developed; shape: tubular; openings: dimidiate; primary septa to 2/3 R. Coenosteum: different on and between radials: between radials: reticulate, on radials: costate; spinule shape: single point.

Further literature. Wallace & Wolstenholme (1998), Wallace (1999), Veron (2000), Dai & Horng (2009).