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332:. The oral (under) surface is somewhat concave and the food grooves are long and deeply incised. The spines are short, with the primaries hardly exceeding the length of the secondaries. When living, this sea biscuit is greenish-grey or brownish, the petaloid area sometimes being darker brown; the bare test is yellowish or beige.
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is a medium-sized species of sea biscuit, growing to a maximum length of 160 mm (6 in). Its shape is pentagonal and it is slightly longer than it is broad. The margin is quite thick and the petaloid area is raised above the rest of the surface. The individual petals are closed and the
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Malaysia, New Caledonia and northern Australia. It is found on sandy seabeds at depths down to about 216 m (709 ft).
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This species is found in the western Indo-Pacific region, its range extending from the
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petaloid area occupies less than half the width of the
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316:. It occurs in the tropical Indo-Pacific region.
410:Echinoidea: with bilateral symmetry. Irregularia
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384:World Register of Marine Species
312:in 1778 by the German biologist
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413:. De Gruyter. pp. 49–51.
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407:Schultz, Heinke A.G. (2017).
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588:Animals described in 1778
314:Nathanael Gottfried Leske
308:. This species was first
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41:Scientific classification
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310:scientifically described
256:Echinodiscus placunarius
240:Echinanthus placunarius
370:Kroh, Andreas (2018).
224:Echinanthus explanatus
192:Clypeaster placunarius
280:Stolonoclypus humilis
248:Echinanthus productus
16:Species of sea urchin
216:Clypeaster tumescens
176:Clypeaster ambigenus
272:Scutella placunaria
232:Echinanthus humilis
208:Clypeaster saisseti
474:Clypeaster_humilis
445:Clypeaster humilis
374:Clypeaster humilis
325:Clypeaster humilis
294:Clypeaster humilis
200:Clypeaster rumphii
150:Clypeaster humilis
25:Clypeaster humilis
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437:Taxon identifiers
420:978-3-11-036853-6
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264:Scutella ambigena
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184:Clypeaster latus
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259:(Lamarck, 1816)
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132:C. humilis
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376:(Leske, 1778)"
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306:Clypeasteridae
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108:Clypeasteridae
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98:Clypeasteroida
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141:Binomial name
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387:. Retrieved
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346:Persian Gulf
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336:Distribution
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547:SeaLifeBase
508:iNaturalist
320:Description
235:Leske, 1778
158:Leske, 1778
593:Clypeaster
582:Categories
352:References
299:sea urchin
251:Gray, 1851
227:Gray, 1851
119:Clypeaster
88:Echinoidea
126:Species:
64:Kingdom:
58:Eukaryota
526:10797178
460:Q2293755
454:Wikidata
167:Synonyms
104:Family:
74:Phylum:
68:Animalia
54:Domain:
500:5721228
342:Red Sea
301:in the
114:Genus:
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84:Class:
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552:139146
539:213364
513:349412
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389:3 June
303:family
560:WoRMS
521:IRMNG
487:5ZCZS
380:WoRMS
344:and
534:OBIS
495:GBIF
415:ISBN
391:2018
330:test
482:CoL
469:AFD
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
