dcsimg

Distribution

provided by EOL authors
New Caledonia, 250-350 m; New Zealand (Cairns, 1995), 89-1152; Australia (Cairns, 1995; 2004, and present study), 143-164 m; Philippines and Indonesia (Cairns & Zibrowius, 1997), 100-300 m; Wallis and Futuna region, and Vanuatu (Cairns, 1999), 180-516 m.

Diagnostic Description

provided by EOL authors
Corallum small, ceratoid to trochoid, with circular to elliptical calice, and attached by a pedicel (PD:GCD = 0.32–0.47) which expands into a thin encrusting base. Costae inconspicuous, each separated by very shallow and narrow intercostal striae disappearing toward pedicel. Theca covered with closely spaced, rounded on edge, transverse ridges. Ridges continuous and best developed on lower part of the corallum. Corallum white to reddish-brown near calicular edge. Septa hexamerally arranged in 4 complete cycles (6:6:12:24 [48 septa]), according to formula: S1-S2>S3>S4. S1-S2 equally exsert (up to 2 mm), extending about 80% distance to columella, with rounded upper edges, and vertical and slightly sinuous axial edges. Higher cycles progressively less exsert and wide. However, S4 almost as exsert as S2, fusing to adjacent S1 above calicular edge forming tall triangular lancets. Axial edge of S3 very sinuous, and S4 straight to slightly sinuous. Twelve well-developed pali, each separated from their corresponding S3 by a V notch, form a palar crown encircling columella. Fossa of moderate depth containing a fascicular columella consisting of 3-12 twisted elements.

Biology

provided by World Register of Marine Species
azooxanthellate

Reference

van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).

license
cc-by-4.0
copyright
WoRMS Editorial Board
contributor
Jacob van der Land [email]

Depth range

provided by World Register of Marine Species
89-1152 m
license
cc-by-4.0
copyright
WoRMS Editorial Board
contributor
Stephen Cairns [email]