370 
S.D. Caims 
97802; stn 02/82/13A, 1 irregular fragment, WAM 
478-96. 
Umataka Marti: stn 6291, 2 irregular fragments, 
WAM 428-96. 
Lady, stn RW96-17,1, NTM C8071. 
Remarks 
This species is also known to occur in two 
growth forms: relatively large (GCD over 2 cm), 
complete coralla, and as irregularly-shaped (often 
semi-circular) regenerative fragments less than 1 
cm in GCD (Cairns 1994). Three of the lots 
reported are irregular fragments, one of the other 
two (i.e.. Soda 1/79/18) being one of the largest 
known specimens, having a GCD of 25.1 mm. 
Distribution 
Western Australia: continental shelf of 
northwestern coast from Cartier Island to west of 
Glomar Shoal; 101-300 m. Elsewhere: Indo-West 
Pacific (southwestern Indian Ocean to Japan, 
including Great Australian Bight (western South 
Australia)); 69-823 m (Caims and Zibrowius 1997). 
Fungiacyathus (F.) multicarinatus sp. nov. 
Figure 1 a-c 
Records 
Soela : stn 01/84/54, holotype, WAM 547-84. 
Description 
Corallum circular, but eccentric, caused by 
regeneration from a parent fragment that composes 
about one-third of corallum; GCD = 25.9 mm. Base 
undulating, also due to regeneration. Costae finely 
dentate, low ridges. Septa hexamerally arranged in 
five cycles; all septa planar, with straight upper 
edges. SI bear 30-34 trabecular carinae on each 
face, sometimes aligned on either side of a septum, 
but usually not. Septal carinae quite tall, up to 0.4 
mm, filling most of interseptal regions and 
obscuring view of corallum base and synapticulae. 
Innermost trabecular carinae produced into 
spatulate spines that arch toward and slightly over 
the columella. Middle and outer trabecular carinae 
grouped into upward projecting spines of 2 or 4 
trabeculae apiece. S2 similar to SI but slightly 
smaller. S3 similar to S2 but slightly less tall and 
composed of only 24-26 trabecular per septal face. 
Inner edges of Sl-3 extend to columella. S4 bear 
only 16-18 trabecular carinae per face, fusing to 
their adjacent S3 about two-thirds distance to 
columella. S5 rudimentary, composed of only 5-7 
trabecular carinae per septal face, merging with 
their common S4 about half distance to columella. 
No septal canopies; no pali or paliform lobes. 
Synapticulae small and poorly developed. 
Columella papillose. 
Remarks 
This subgenus consists of five Recent species: F. 
pusillus (Pourtales, 1868); F. fragilis Sars, 1872; F. 
stephanus (Alcock, 1893); F. paliferus (Alcock, 
1902a); and F. sp. A sensu Cairns, 1994. F. 
multicarinatus differs from these species in having 
more numerous and much taller trabecular carinae, 
and poorly developed synapticulae. Although 
represented by only one specimen, it would appear 
to be a species that reproduces by asexual 
fragmentation, a mode consistent with its poorly 
developed synapticulae. 
Distribution 
Western Australia: continental slope off Dampier 
Land; 348-350 m. 
Etymology 
The species name multicarinatus (Latin multus, 
many + carinatus, keeled, carinate) alludes to the 
numerous trabecular carinae on the face of each 
septum, more than in any other species in the 
genus. 
Subgenus Bathyactis Moseley, 1881 
Fungiaci/athus (B.) variegatus Cairns, 1989 
Fungiacyathus (B.) variegatus Caims, 1989: 11-12, pi. 
5, figs, a-h; 1994: 38-39, pi. 15, figs. a-b.— 
Caims and Zibrowius, 1997: 71-72. 
New Records 
Soda: stn 01/84/65, 2, WAM 1020-85. 
Umataka Maru: stn 6921, 1, WAM 148-84. 
Distribution 
Western Australia: continental slope of 
northwestern coast south of Scott Reef and south 
of Rowley Shoals; 300-302 m. Elsewhere: western 
Pacific from Ryukyu Islands through Indonesia; 
84—715 m (Zibrowius and Caims, 1997). 
Fungiacyathus (B.) granulosus Cairns, 1989 
Fungiacyathus (B.) granulosus Caims, 1989: 11, pi. 4, 
figs, d-i; 1994: 39, pi. 15, figs. d-e.—Cairns and 
Zibrowius 1997: 71. 
New Records 
Soela: stn 01/84/65, 8: 5 (WAM 768-84), 3 
(USNM 97803); stn 01/84/66, 3, WAM 741-84; stn 
01/84/67, 5, WAM 429-96; stn 01/84/77, 1, WAM 
526-84; stn 01/84/122, 1, WAM 794-84. 
Courageous: stn 002, 2, WAM 452-96; stn 004, 1, 
USNM 97804. 
Distribution 
Western Australia: continental slope of 
