Published December 31, 2005 | Version v1
Taxonomic treatment Open

Glyphodiscus magnificus Mah 2005, n. sp.

  • 1. Department of Geology, University of Illinois at Urbana-Champaign, 245 NHB, 1301 W. Green, Urbana, Illinois 61801 (USA) mah @ uiuc. edu.

Description

Glyphodiscus magnificus n. sp.

(Fig. 3 A-C)

HOLOTYPE. — Palau. CRECH 146, Mutremdiu 2, Palau, 7°16.41’N, 134°31.43’E, 162 m, 29.III.2001, specimen wet, R = 7.5 cm, r = 2.6 cm (CASIZ 168012).

PARATYPES. — New Caledonia. BATHUS 1, stn CP 701, 20°57.5’S, 165°35.9’E, 302-335 m, 18.III.1993, 1 dry specimen, R = 4.1 cm, r = 1.5 cm (MNHN EcAs 11682). — MUSORSTOM 4, stn DW 186, 19°07’S, 163°30’E, 190 m, 19.IX.1985, 1 dry specimen, R = 2.5 cm, r = 1.1 cm (MNHN EcAs 11684). — MUSORSTOM 4, stn DW 185, 19°06’S, 163°29’E, 230 m, 18.IX.1985, 7 dry specimens, R = 2.2 cm, r = 0.8 cm, R = 2.4 cm, r = 1.0 cm, R = 2.6 cm, r = 1.0 cm, R = 2.7 cm, r = 1.1 cm, R = 3.4 cm, r = 1.5 cm, R = 3.6 cm, r = 1.8 cm, R = 3.8 cm, r = 1.6 cm (MNHN EcAs 11683). — SMIB 5, 250 m, 13.IX.1989, rocks, 3 dry specimens, R = 2.4 cm, r = 1.0 cm, R = 2.7 cm, r = 1.1 cm, R = 2.9 cm, r = 1.2 cm (MNHN EcAs 11692). — SMIB 5, stn DW 90, 22°19.1’S, 168°41.6’E, 310-340 m 13.IX.1989, 1 dry specimen, R = 2.7 cm, r = 1.2 cm (MNHN EcAs 11693).

Vanuatu. MUSORSTOM 8, stn CP 970, 20°19’S, 169°53’E, 252-310 m, 21.IX.1994, 1 dry specimen, R = 4.3 cm, r = 2.0 cm (MNHN EcAs 11691).

ETYMOLOGY. — The descriptor magnificus describes the magnificent and striking appearance of this species.

DISTRIBUTION. — New Caledonia, Vanuatu, and Palau. 162- 335 m.

DIAGNOSIS. — A species with interradial marginal (supero- and infero- series) plates bearing conical prominences extended from the plate. Furrow and subambulacral spines are flattened and nearly flush with the actinal surface.

APOMORPHY LIST. — 14, marginal cones (Fig. 3A). 20, subambulacral spines present (Fig. 3C). 21, subambulacral spines flattened (Fig. 3C).

DESCRIPTION

Body relatively flattened. Arms elongate. Interradial arcs broad-linear. Pedicellariae absent on abactinal surface and marginal plate series. Pedicellariae present on actinal surface.

Abactinal surface flat. Disk region stellate.

Notes

Published as part of Mah, Christopher, 2005, A phylogeny of Iconaster and Glyphodiscus (Echinodermata, Asteroidea, Valvatida, Goniasteridae) with descriptions of four new species, pp. 137-161 in Zoosystema 27 (1) on page 147, DOI: 10.5281/zenodo.5392847

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Linked records

Additional details

Biodiversity

Collection code
R
Event date
2001-03-29
Family
Goniasteridae
Genus
Glyphodiscus
Kingdom
Animalia
Material sample ID
CRECH 146, CASIZ 168012
Order
Valvatida
Phylum
Echinodermata
Scientific name authorship
Mah
Species
magnificus
Taxonomic status
sp. nov.
Taxon rank
species
Type status
holotype
Verbatim event date
2001-03-29
Taxonomic concept label
Glyphodiscus magnificus Mah, 2005