dcsimg

Distribution

provided by EOL authors
New Caledonia waters from 18°59.93’S, 163°13.55’E to 24°45’S, 168°07’E (Kitahara & Cairns, 2009), Loyalty islands (Gardiner 1899), 73-400 m. Previous records: Australia off Queensland (Cairns 1995), 315-360 m; Wallis and Futuna region, and Vanuatu region (Cairns 1999), 295-360 m.

Diagnostic Description

provided by EOL authors
Corallum circular, lancetted and shaped as a shallow bowl with upturned edges. Base flat to slightly concave, sometimes with small scar at centre. C1-2 equal and always reach centre of base, being separated from adjacent costae by moderately deep intercostal furrows. C3 most developed costae projecting up to 1.5 mm beyond calicular edge as 12 granular spines. C4 do not reach centre of base, but fuses adjacent C3 beyond calicular margin producing 12 well-developed apexes. Corallum white. Septa hexamerally arranged in 4 cycles (S1>S2> S4>S3). S1 only independent septa, extending ¾ the distance to columella, being separated from their dimorphic paliform lobe (as in D. crassiseptum) by a deep notch. S2 slightly narrower than S1 and bear a small palus. S3 are smallest septa (⅓ of S2) but bears largest paliform lobes which fuse P2 near columella. S4 fuses outer edge of fl anked P3. Fossa shallow containing an elliptical papillose columella aligned with the two principal S1. Columella consists of small, short, fused tuberculate papillae.

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
73-360 m
license
cc-by-4.0
copyright
WoRMS Editorial Board
contributor
Stephen Cairns [email]

Habitat

provided by World Register of Marine Species
slope

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]