Certonardoa

Certonardoa semiregularis is a species of sea star in the family Ophidiasteridae.^[1] It is the only species in the genus Certonardoa.^[2]

Certonardoa
Dorsal view of Certonardoa semiregularis
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Asteroidea
Order:	Valvatida
Family:	Ophidiasteridae
Genus:	Certonardoa H.L. Clark, 1921
Species:	C. semiregularis
Binomial name
Certonardoa semiregularis (Muller & Troschel, 1842)[1]
Synonyms[1]
Linckia semiregularis von Martens, 1866 Nardoa semiregularis Sladen, 1889 Scytaster semiregularis Müller & Troschel, 1842

Description

Ventral view

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.^[3]

Distribution

This species is found in the East China Sea, in Japan, in particular, Honshu Island, Kyushu.^[4]