Taxa named by Ole Theodor Jensen Mortensen

species of ctenophore

Hemicentrotus pulcherrimus is a species of sea urchin, the only one in the monotypic genus Hemicentrotus. It was first described by the American engineer and marine zoologist Alexander Agassiz in 1864 as Psammechinus pulcherrimus. Its range extends along the coasts of Korea, Taiwan and China, and in Japan from Kyūshū to Ishikari Bay. An edible species, it is harvested from Kyūshū to Fukui, in the Sea of Japan.

Histocidaris is a genus of sea urchins in the family Histocidaridae. Some species are known from the fossil record.

Lissodiadema is the only genus in the family Lissodiadematidae.

species of echinoderm

Araeosoma is a genus of deep-sea sea urchins in the family Echinothuriidae.

species of echinoderm

species of ctenophore

species of echinoderm

species of echinoderm

species of echinoderm

sea urchin

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

Asterechinus elegans is a species of sea urchin of the family Trigonocidaridae. Their armour is covered with spines. It is the only species in the genus Asterechinus and lives in the sea. Asterechinus elegans was first scientifically described in 1942 by Ole Theodor Jensen Mortensen.

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm

species of echinoderm