Acropora echinata (Dana, 1846)

(Fig. 28)

Madrepora echinata Dana, 1846: 464, pl. 36 figs 1–1a.

Madrepora durvillei Milne Edwards & Haime, 1860: 148 .

Madrepora procumbens Brook, 1891: 467; 1893: 188, pl. 29 fig. D.

Type locality. Fiji (lectotype NMNH-SI).

MTQ Holdings. Maldives: G60490, G59788–90, G59852, G59918–19; Thailand: G32781, G55888, G55889; Malaysia: G53888 Sabah; Indonesia: G50961 Nusa Tenggara; G47708–0 9 Lombok; G51676–77 Tukangbesi Islands; G43810, G50962–63 Taka’bonerate; G50328 Flores; G50336–45 Kalimantan; G50329 Semau; G47706– 0 7, G49955–58, G50330–35, G51669, G55410, G63337–38 Sulawesi; G51670–75, G52407 Halmahera; G47704–05 Banda Sea; G60759, G61003 Irian Jaya; Australia: G28166, G28394, G28406, G28409, G28459– 62, G28488, G56982, G60518 Great Barrier Reef; G28458, G60537, G60571, G60575 Coral Sea; South China Sea: G52281; Palau: G36227, G56845, G60434; Papua New Guinea: G35899, G53193–94, G53616–20, G54564–65, G55085; Micronesia: G59258, G59283, G59655, G62552–58, G62623–24 Pohnpei; Solomon Is.: G35594, G52110; New Caledonia: G58713; Kiribati: G54988.

Species group: echinata .

Description. Colony outline: indeterminate, predominantly hispidose. Branches: tertiary branching order present; length: 25–50 mm; diameter: 2.5–4.9 mm, 50/50 axial/radial, terete; radial crowding: not touching; axial/radial ratio: <1:10. Axial corallites: two synapticular rings; porous; outer diameter 0.8–1.8 mm; inner diameter 0.5–1.0 mm; primary septa to 2/3 R. Radial corallites: medium; two synapticular rings; one size or graded; inner wall developed; shape: appressed tubular; openings: ovalrounded; primary septa to ¼ R. Coenosteum: same on and between radials: costate; spinule shape: no spinules.

Further literature. Nishihira & Veron (1995), Wallace & Wolstenholme (1998), Wallace (1999), Veron (2000).