Iconaster elegans Jangoux, 1981

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 : 151-153

Iconaster elegans Jangoux, 1981

( Fig. 4 A-D)

Iconaster elegans Jangoux, 1981: 467 , pl. 3 figs 1-3, text fig. 2. — Aziz 1986: 255. — A. M. Clark 1993: 259.

MATERIAL EXAMINED. — 1 paratype ( MNHN EcAs 2776).

DISTRIBUTION. — Known only from the Philippines. 129- 222 m.

DIAGNOSIS. — Species with glassy tubercles on all body surfaces, including abactinal, actinal, adambulacral, superomarginal and inferomarginal plate series. APOMORPHY LIST. — 1, enlarged corner accessory plates present on radial regions. 2, enlarged corner accessory plates present. 3, complete periphery of abactinal accessories. 4, glassy tubercles on abactinal plates. 7, disk and abactinal disk surface flush. 9, glassy tubercles on superomarginal plates. 10, glassy tubercles on inferomarginal plates. 12, wide marginal plates. 16, glassy tubercles on actinal plates. 19, furrow spines spaced apart. 20, subambulacral spines present. 23, subambulacral spines absent. 25, enlarged oral spines present. 26, rounded interradial arc. 31, fan like flaps on ambulacral base.

Iconaster longimanus ( Möbius, 1859) ( Fig. 4 E-G)

Astrogonium longimanum Möbius, 1859: 7 , pl. 1, figs 5, 6.

Astrogonium souleyeti – Dujardin & Hupé 1862: 392.

“ Archaster lucifer ?” – Valenciennes in Perrier 1875: 228 (1876: 44) (cited only as MS name in synonymy of I. longimanus – Möbius 1859 so not an available name).

Goniaster longimanum – Lütken 1864: 145; 1871: 245.

Dorigona longimana – Gray 1866: 7.

Pentagonaster longimanus – Perrier 1875: 228.

Iconaster longimanus – Sladen 1889: 262. — Koehler 1895: 393; 1910: 268. — Döderlein 1896: 307,

Mah C.

1900: 293. — Fisher 1919: 303, pl. 77, fig. 2, pl. 83, fig. 5, pl. 93, figs 2-2a, pl. 104, fig. 3. — H. L. Clark 1921: 28; 1938: 91. — Engel 1938: 3, pl. 1, fig. 1a-b. — H. L. Clark 1946: 95. — Endean 1957: 238; 1961: 289. — A. M. Clark & Rowe 1971: 47, pl. 5, fig. 4. — Domantay 1972: 79. — Marsh 1976: 217. — Rowe & Gates 1995: 65. — Gosliner et al. 1996: 253. — A. M. Clark 1993: 259. — Van Den Spiegel et al. 1998: 446, fig. 27A-C, pl. I-4.

MATERIAL EXAMINED. — Singapore. Hantu, 10 m, 2 specimens dry ( CASIZ 117905).

Philippines. Sulu Archipelago, stn 5174, 2.6 miles west of Jolo Light, Jolo, 36.6 m depth, coarse sand, 1 specimen ( NMNH 40546).

DISTRIBUTION. — Indo-Pacific distribution. SE Arabia, Indonesia, N and W Australia and Queensland, Philippine Is, Singapore, South China Seas. 6- 85 m.

DIAGNOSIS. — Species with glassy tubercles on abactinal and superomarginal plates. Elongate arms with abutted superomarginals along radius.

APOMORPHY LIST. — 1, enlarged corner accessory plates present on radial regions. 2, enlarged corner accessory plates present. 3, complete periphery of abactinal accessories. 4, glassy tubercles on abactinal plates. 7, disk and abactinal disk surface flush. 9, glassy tubercles on superomarginal plates. 26, rounded interradial arc.

Figures

FIG. 4. — A-D, Iconaster elegans Jangoux, 1981, paratype, dry (MNHN EcAs 2776); A, abactinal surface; B, glassy granules on superomarginals; C, enlarged accessories on abactinal plates, papular region; D, oral and adambulacral regions; E-G, Iconaster longimanus MÖbius, 1859, Singapore, dry (CASIZ 117905); E, abactinal surface; F, abactinal plates with glassy granules; G, oral and