Acropora longicyathus (Milne Edwards & Haime, 1860)

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 : 116

Acropora longicyathus (Milne Edwards & Haime, 1860)

( Fig. 56 )

Madrepora longicyathus Milne Edwards & Haime, 1860: 148 .

Madrepora syringodes Brook, 1892: 463 ; 1893: 177, pl. 33 fig. E.

Acropora navini Veron, 2000 , vol. 1: 431; 2002: 68–69, figs 136–139.

Type locality. unknown (holotype MNHN).

MTQ Holdings. G55820 HOLOTYPE of A. navini from Milne Bay, Papua New Guinea; Sri Lanka: G56331; Thailand: G32797, G55896–99; Malaysia: G54996, G57661, G57666, G57688 mainland and islands; G53926–28 Sabah; Indonesia: G51208–09 Seribu Is; G50788 Ambon; G47691–96, G47728–29, G50789, G51666, G55416, G59051, G63336 Sulawesi; G52414–15 Halmahera; Australia: G27034, G27047, G27067, G28711, G28713, G28716–17, G28719–24, G28971–76, G28978–79, G28981–85, G29454, G29459–62, G29464–65, G29485–89, G29491, G29493–95, G29509, G29822, G29825–26, G29828–29, G29832–33, G29835, G30335, G30337–39, G30341–45, G30347, G30710, G30713–16, G30719, G30721–22, G30724, G30746–60, G31147–49, G31164, G32462–63, G34244, G35127–28, G37303, G37366, G37396, G37406, G56930–31, G57020, G57513, G57523, G57527–29, G57881, G57989–90, G57994–95, G58052, G58059, G58063, G58315, G58603–04, G60598, G60602 Great Barrier Reef; G29453, G29455, G29458, G29821, G29823, G29830–31, G30340, G30709, G30711– 12, G30717–18, G30720, G30723, G33524, G34246, G39843, G57629, G57639, G60567 Coral Sea; South China Sea: G37562; Japan: G36824, G36830, G38034, G47801–02; Palau: G36236, G36534–35, G56883–87; Papua New Guinea: G39737, G53324–43, G53442, G53566, G53713–14, G54663; Micronesia: G37997 Chuuk; G40751, G59266, G59273, G62467, G62517–21, G62563, G62606 Pohnpei; Solomon Is.: G52111, G58567, G59006; New Caledonia: G40881, G58694, G61015, G61024, G61025; Chesterfield Atoll: G29452, G29457, G29492, G29824, G29827, G29834, G34148, G38151; Marshall Is.: G56154, G57331; Fiji: G34739; Samoa: G35607.

Species group: echinata .

Description. Colony outline: indeterminate, predominantly hispidose. Branches: tertiary branching order present; length: 25–50 mm; diameter: 5.0–9.9 mm, 50/50 axial/radial, terete; radial crowding: not touching; axial/radial ratio: <1:10. Axial corallites: two synapticular rings; not porous; outer diameter 1.5–2.8 mm; inner diameter 0.5–1.3 mm; primary septa to ¾ R. Radial corallites: medium; two synapticular rings; one size or graded; inner wall developed; shape: appressed tubular; openings: oval-rounded; primary septa to ¼ R. Coenosteum: same on and between radials: dense spinules; spinule shape: elaborate.

Taxonomic note. Acropora navini is placed in synonymy with A. longicyathus because the holotype falls within the range of variability of the specimen holdings above: in particular, with G39737, G57529 and G57994, all from the Great Barrier Reef.

Further literature. Veron & Wallace (1984), Nishihira & Veron (1995), Wallace & Wolstenholme (1998), Wallace (1999), Turak & DeVantier (2011).

Figures

FIG. 56. Acropora longicyathus, G60598, Ribbon Reefs, Great Barrier Reef, Australia, 2007 (photo: P. Muir). Map of documented distribution: blue squares = MTQ specimens; pink squares = literature records; orange diamonds = type localities (where given), including primary synonyms.