408 
S.D. Cairns 
SB3, 24°54’S, 113°17.8'E, 23 m, 2 V 1981, 2, WAM 
700-81; stn Flinders 12, 28°39.5’S, 113°47.5'E, 37 m, 
22 VIII 1977, 1, WAM 140-83; Port Essington, 
Cobourg Peninsula, Northern Territory, 1, NTM 
C8038. 
Remarks 
According to Veron and Pichon (1980:419), this 
species may be either zooxanthellate or 
azooxanthellate, the latter expanding its polyps 
only at night. 
Distribution 
Western Australia: continental shelf of western 
coast from Joseph Bonaparte Gulf to Abrolhos 
Islands; 9-137 m (Veron and Marsh 1988). 
Elsewhere: widespread in Indo-West Pacific; depth 
range not known (Veron and Pichon 1980; 
Hoeksema and Best 1991). 
Genus Rhizopsammia Verrill, 1870 
Rhizopsamtnia verrilli van der Horst, 1922 
Rhizopsamtnia verrilli van der Horst, 1922: 64-65, pi. 
8, figs. 1-2.—Cairns, 1991: 25, pi. 11, figs, c-e 
(synonymy and description).—Cairns and 
Zibrowius, 1997: 188-189, figs. 28 f-g. 
New Records 
stn "12", Egeria Point, Christmas Island, 9-20 m, 
19 II 1987, 1 colony, WAM 385-87; stn "13", 
Northwest Point, Christmas Island, 19 II 1987, 2 
colonies, WAM 386-87; Lost Lake, Christmas 
Island, 1-2 m, 18 II 1987, 1 colony, WAM 384-87; 
13°56'S, 125°37'E (Cassini Island, Kimberley), 
"SCUBA" depth, 18 VIII1991, 1 colony, WAM 147- 
91; 20°28'30"S, 116°32'E, 26 V 1974, 3 colonies: 2 
(WAM 10-76), 1 (USNM 96701); Ningaloo, 
Winderabandi, 5-12 m, 4 VIII 1985, 2 colonies, 
WAM 956-85; 26°10'10"S, 113°11'00"E, 2 m, 15 IV 
1979, 7 colonies, WAM 451- and 552-79; stn C71, 
Leo Island, Abrolhos, 38 m, 1 IX 1972, 1 corallite, 
WAM 71-73. 
Remarks 
Living specimens are orange-pink to pale pink in 
colour. Other azooxanthellate species, such as 
Culicia australiensis and Thalamophyllia tenuescens, 
often encrust the same substrate as R. verrilli. 
Distribution 
Western Australia: continental shelf of 
western coast from Kimberley to Abrolhos 
Islands; Christmas Island; 2-38 m. Elsewhere: 
South Pacific, including Philippines, Indonesia, 
Pelau, Cocos Islands (eastern Pacific) and 
Galapagos Islands; 5-278 m (Cairns and 
Zibrowius 1997). 
Genus Dendrophyllia Blainville, 1830 
Dendrophyllia alcocki (Wells, 1954) 
Figure 9g 
Sclerhelia alcocki Wells, 1954: 465-466, pi. 177, figs. 1-2. 
Dendrophyllia alcocki - Zibrowius, 1974a: 570-573, 
figs. 10-14.—Cairns, 1995: 126-127, pi. 43, figs, 
g-i, pi. 44, figs, a-b (synonymy and 
description).—Cairns and Zibrowius, 1997: 193. 
New Record 
Soela: stn 01/84/55, 1 colony, WAM 561-84. 
Remarks 
The specimen reported above bears 9 characteristic 
lenticular-shaped burrows of an acrothoracican 
cirripede crustacean, each burrow having an 
aperture 3.0-3.1 mm in length and 0.8-1.3 mm in 
width (Figure 9g). All burrows occurred on the 
encrusting base of the corallum, as well as in the 
calcareous substrate on which the coral was attached. 
Whereas these boring cirripedes have been reported 
previously from deep-water Scleractinia (Grygier 
and Newman 1985; Cairns and Zibrowius 1997), this 
is the first record of this parasitic association between 
an acrothoracican and D. alcocki. 
Distribution 
Western Australia: continental slope off Cape 
Leveque, Dampier Land; 296-298 m. Elsewhere: 
Indo-West Pacific from Maidive Islands to New 
Zealand, including the Marshall Islands and South 
China Sea; 118-616 m (Cairns and Zibrowius 1997). 
Dendrophyllia arbuscula van der Horst, 1922 
Dendrophyllia arbuscula van der Horst, 1922: 53, pi. 
8, fig. 6.—Wells, 1964: 108.—Cairns, 1994: 90- 
91, pi. 38, figs, i-1 (synonymy and description); 
1995: 125-126, pi. 43, figs. e-f.—Cairns and 
Zibrowius, 1997: 192-193, figs. 29 a-c. 
Dendrophyllia - Veron, 1986: 578, in part: black and 
white fig. 
New Records 
Long Island, Wallabi Group, Abrolhos, 24-30 m, 
16 IV 1978, 1 colony, WAM 207-78; Evening Reef, 
Abrolhos, 49 m, 2 colonies: 1 (WAM 172-81), 1 
(USNM 96703); Sorrento, north of Fremantle, 5 m, 
IV 1971, 3 colonies, WAM 68-78; Armstrong Bay, 
Rottnest Island, 1-2 m, 14 II 1985, 4 colonies, WAM 
328-89. 
Remarks 
Living specimens are orange-red in colour. 
Distribution 
Western Australia: continental shelf of 
