Certonardoa

{{Short description|Species of starfish}}

{{Speciesbox

| image = Certonardoa semiregularis ja01.jpg

| image_caption = Dorsal view of Certonardoa semiregularis

| genus = Certonardoa

| parent_authority = H.L. Clark, 1921

| species = semiregularis

| authority = (Muller & Troschel, 1842){{cite web|url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=292789 |title=WoRMS - World Register of Marine Species - Certonardoa semiregularis (Muller & Troschel, 1842) |publisher=Marinespecies.org |date=2008-01-25 |access-date=2012-01-22}}

| synonyms =

Linckia semiregularis von Martens, 1866

Nardoa semiregularis Sladen, 1889

Scytaster semiregularis Müller & Troschel, 1842

| synonyms_ref =

}}

Certonardoa semiregularis is a species of sea star in the family Ophidiasteridae. It is the only species in the genus Certonardoa.{{cite WoRMS |author=Mah, C.L. |year=2023 |title=Certonardoa H.L. Clark, 1921 |id=292788 |access-date=2 December 2023 |db=Asteroidea}}

Description

File:Certonardoa semiregularis ja02.jpg

This species has five, slender, tapering arms. There are regular, longitudinal and transverse rows on the dorsal side. The ventral side is paler than the dorsal side.{{cite journal|title= New cytotoxic sulfated saponins from the starfishCertonardoa semiregularis|doi=10.1007/BF02977793 |publisher=SpringerLink |volume=28 |journal=Archives of Pharmacal Research |pages=285–289}}

Distribution

This species is found in the East China Sea, in Japan, in particular, Honshu Island, Kyushu.{{cite web|url=http://www.marinespecies.org/asteroidea/aphia.php?p=taxdetails&id=292789 |title=The World Asteroidea Database - Certonardoa semiregularis (Muller & Troschel, 1842) |publisher=Marinespecies.org |date=2008-01-25 |access-date=2012-01-22}}

References

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