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WoRMS taxon details

Checked: verified by a taxonomic editorToraster tuberculatus (Gray, 1847) 
AphiaID: 178147

Classification: Biota > Checked: verified by a taxonomic editorAnimalia (Kingdom) > Checked: verified by a taxonomic editorEchinodermata (Phylum) > Checked: verified by a taxonomic editorAsterozoa (Subphylum) > Checked: verified by a taxonomic editorAsteroidea (Class) > Checked: verified by a taxonomic editorValvatacea (Superorder) > Checked: verified by a taxonomic editorValvatida (Order) > Checked: verified by a taxonomic editorGoniasteridae (Family) > Checked: verified by a taxonomic editorPentagonasterinae (Subfamily) > Checked: verified by a taxonomic editorToraster (Genus)
Status accepted
Rank Species
Parent Checked: verified by a taxonomic editorToraster A.M. Clark, 1952
Synonymised
names
  Checked: verified by a taxonomic editorAstrogonium tuberculatum Gray, 1847 (synonym)
Checked: verified by a taxonomic editorGoniaster tuberculatus von Martens, 1869
Checked: verified by a taxonomic editorPentagonaster granulatus Bell, 1905 (Synonym according to Mortensen (1933))
Checked: verified by a taxonomic editorTosia tuberculata H.L. Clark, 1923
Sources  basis of record Clark, A.M. (1993). An index of names of recent Asteroidea, part 2: Valvatida, in: Jangoux, M.; Lawrence, J.M. (Ed.) (1993). Echinoderm Studies, 4: pp. 187-366 (look up in IMIS[details]

[show all]
Environment marine, brackish, fresh, terrestrial
Fossil range recent only
Distribution 
From editor or global species database
South Africa
Checked: verified by a taxonomic editorSouth Africa (country) [details]
From other sources
Angola
Unreviewed: has not been verified by a taxonomic editorSouth Angola [details]
Southern Ocean
Unreviewed: has not been verified by a taxonomic editorFalse Bay [details]
(no group)
Unreviewed: has not been verified by a taxonomic editorSouth East Africa [details]
Links Unreviewed: has not been verified by a taxonomic editorTo Encyclopedia of Life 
Unreviewed: has not been verified by a taxonomic editorTo USNM Invertebrate Zoology Echinodermata Collection 
Notes 
From editor or global species database
Checked: verified by a taxonomic editorDescription Body form weakly to strongly stellate, relatively thin relative to Tosia or Pentagonaster. Arm tip, rapidly narrowing, pointed.

Abactinal plates extremely convex, swollen, mostly bare, smooth, round to polygonal in outline. Abactinal surface covered with large, evenly round, spherical granules covering some secondary plate surfaces and plate periphery, especially at lateral contact with superomarginal plate series. Abactinal plates all relatively uniform in size, radial/interradial plates not distinctive, not enlarged. Primary circlet plates sometimes enlarged. Abactinal plates relatively small compared to Tosia or Pentagonaster. Large bivalve-pedicellariae present, commonly bisect abactinal plates. Madreporite polygonal. Double to multiple papular pores present, but absent interradially.

Fasciolar grooves between abactinal plates well-developed. Marginal plates convex, longer than wide, interradially, becoming more wider distally, relatively small compared to Pentagonaster or Tosia, decreasing in size distally. Enlarged bivalve pedicellariae similar to those on abactinal plate surface irregularly present on superomarginal plates. Large, spherical granules, similar to those on abactinal surface form periphery and cover partial superomarginal and inferomarginal surface, especially on lateral marginal plate surface. Granules sometimes distributed patchily over plate surface. Fasciolar grooves between marginal plates, well-developed. Swollen penultimate marginal plates absent. Multiple (3-6) superomarginal plates in contact across midradius adjacent to armtip, becoming more swollen, wider distally.

Actinal plates polygonal, obscured by spherical granules identical to those on abactinal, marginal plate surface, relatively small in size compared to those in Tosia or Pentagonaster. Furrow spines enlarged, relatively few (1-3) in number per plate. Subambulacrals also thickened, granular, becoming indistinguishable from actinal granulation. Adambulacral plate surface facing furrow-straight in outline. Adambulacral “divider” directed horizontally, oriented symmetrically.

Living color described by Mortensen (1933: 243) as a “beautiful red’.
 [details]

From other sources
Unreviewed: has not been verified by a taxonomic editorType locality Type locality: Port Natal (Durban) [details]
LSID urn:lsid:marinespecies.org:taxname:178147
Taxonomic
Edit history
 
Date   action   by
2005-07-28 06:51:10Z  created  Braeckman, Ulrike
2009-01-31 14:17:57Z  changed  Mah, Christopher
  
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  Citation: Mah, C. (2014). Toraster tuberculatus (Gray, 1847). In: Mah, C.L. (2014) World Asteroidea database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=178147 on 2014-09-18
  Creative Commons License The webpage text is licensed under a Creative Commons Attribution 3.0 License