Iconaster uchelbeluuensis, Mah, 2005

Mah, Christopher, 2005, A phylogeny of Iconaster and Glyphodiscus (Echinodermata, Asteroidea, Valvatida, Goniasteridae) with descriptions of four new species, Zoosystema 27 (1), pp. 137-161 : 156-157

A greater number of apomorphic changes is present among the species within Iconaster relative to Glyphodiscus ( Fig. 6 ), suggesting character evolution associated with shallow water habitation, as has been suggested by Jablonski & Bottjer (1988: 86). For example, glassy tubercles (characters 4, 9, 10, 16) are present on abactinal and actinal surfaces of I. elegans , disk and marginal plate surfaces of I. longimanus and I. uchelbeluuensis n. sp.

Phylogeny of Iconaster and Glyphodiscus ( Echinodermata, Asteroidea)

I. vanuatensis n. sp. Vanuatu Depth: 294-301m Philippines. elegans ne Depth: 186-208 m oc ZArabian Sea, Singapore, itN Australia, Indonesia, oS China Sea Depth: 30-85m Ph uuensis n. sp. Philippines and Palau Depth: 68-122m NPhilippines ew Caledo, W nia A, uNsetrw aliZa e, aland Depth: 178- 475m. sp. New Caledonia Depth: 460-532m New Caledonia, Vanuatu, p. Palau70 Depth: 162-335m Antarctic Ocean Depth: 175-3100 m Hawaiian Islands Depth: 233-1829 m Philippines, W Australia, Thailand Depth: 517-800 m OG: Pontioceramus grandis Philippines, W Australia Depth: 189-300 m

Figures

FIG. 6. — Phylogram of Iconaster + Glyphodiscus, plus outgroup taxa. Numbers with % above branches are bootstrap values (300 replicates). Single numbers below branches are Bremer support values. Lines shown in bold are ingroup taxa. Geographic and bathymetric range data shown to right of tree. Dotted line around Vanuatu indicates possible photic transmission to deeper depths (see Discussion). Abbreviation: OG, outgroup taxon. Scale bar: 5 changes.