Heliocidaris

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Heliocidaris
Heliocidaris erythrogramma P1101912.JPG
Heliocidaris erythrogramma
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Order: Echinoida
Family: Echinometridae
Genus:Heliocidaris

Heliocidaris is a genus of sea urchins, part of the familia Echinometridae.

Sea urchin class of echinoderms

Sea urchins or urchins are typically spiny, globular animals, echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal to 5,000 metres. Their tests are round and spiny, typically from 3 to 10 cm across. Sea urchins move slowly, crawling with their tube feet, and sometimes pushing themselves with their spines. They feed primarily on algae but also eat slow-moving or sessile animals. Their predators include sea otters, starfish, wolf eels, and triggerfish.

Echinometridae family of echinoderms

The Echinometridae are a family of sea urchins in the class Echinoidea.

Contents

Characteristics

This genus is typical of west Pacific Ocean (Japan to New Zealand), in particular in Australia. Some species are edible.

List of species

This genus contains 6 extant species and 1 fossil :

Alexander Agassiz Scientist, engineer

Alexander Emmanuel Rodolphe Agassiz, son of Louis Agassiz and stepson of Elizabeth Cabot Agassiz, was an American scientist and engineer.

Achille Valenciennes French zoologist, ichthyologist, and malacologist

Achille Valenciennes was a French zoologist.

Jean-Baptiste Lamarck French naturalist

Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck, often known simply as Lamarck, was a French naturalist. He was a soldier, biologist, academic, and an early proponent of the idea that biological evolution occurred and proceeded in accordance with natural laws.

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References