Lytechinus semituberculatus | |
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Species: | L. semituberculatus |
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Lytechinus semituberculatus (Valenciennes in L. Agassiz, 1846) | |
Lytechinus semituberculatus, commonly known as the green hedgehog or green sea urchin, is a sea urchin found in the coast of the Galapagos Islands. [1] It is recognizable by its green coloration. Its conservation status is unknown.
Sea 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, triggerfish, and humans.
The Galápagos Islands, part of the Republic of Ecuador, are an archipelago of volcanic islands distributed on either side of the equator in the Pacific Ocean surrounding the centre of the Western Hemisphere, 906 km (563 mi) west of continental Ecuador. The islands are known for their large number of endemic species and were studied by Charles Darwin during the second voyage of HMS Beagle. His observations and collections contributed to the inception of Darwin's theory of evolution by means of natural selection.
Lytechinus variegatus, commonly called the green sea urchin or the variegated sea urchin, is a species of sea urchin that can be found in the warm waters of the western Atlantic Ocean and Caribbean Sea.
The Atlantic purple sea urchin is a species of sea urchins from the family Arbaciidae, native to the Atlantic Ocean.
The sea urchins of the Gulf of California live between the coasts of the Baja California Peninsula to the west and mainland state of Sonora, Mexico to the east. The northern boundary is the lateral band of land with the remains of the Colorado River Delta, and the southern is the Pacific Ocean.
Echinometra mathaei, the burrowing urchin, is a species of sea urchin in the family Echinometridae. It occurs in shallow waters in the Indo-Pacific region. The type locality is Mauritius.
Toxopneustidae is a family of globular sea urchins in the class Echinoidea.
Several species of sea urchin share the name green sea urchin:
Lytechinus williamsi, the jewel urchin, is a sea urchin in the family Toxopneustidae. It occurs on shallow reefs off the coasts of Panama, Belize, the Florida Keys and Jamaica.
Toxopneustes is a genus of sea urchins from the tropical Indo-Pacific. It contains four species. They are known to possess medically significant venom to humans on their pedicellariae. They are sometimes collectively known as flower urchins, after the most widespread and most commonly encountered species in the genus, the flower urchin. Species included in the genus are the following:
Lytechinus is a genus of sea urchins.
Tripneustes depressus, the white sea urchin or sea egg, is a species of sea urchin in the family Toxopneustidae. It is found on the seabed in the tropical eastern Pacific Ocean including Mexico, Panama, Ecuador and the Galápagos Islands.
Eucidaris thouarsii, the slate pencil urchin, is a species of cidaroid sea urchins that inhabits littoral regions of the East Pacific Ocean.
Toxopneustes roseus is a species of sea urchin from the East Pacific. It is sometimes known as the rose flower urchin or the pink flower urchin. Like the related flower urchin, they are venomous.
Silvia Maciá is an American marine biologist and professor of biology at Barry University in Miami Shores, FL. Courses she has taught include marine biology, oceanography, tropical marine ecosystems, ecology, environmental science and botany.
White sea urchin is a common name for several sea urchins and may refer to:
Echinobase is a web information system that catalogs diverse genomic and biological data for the echinoderm clade. The system provides a gene search engine, genomics browser and other bioinformatics tools to explore genomic and transcriptomic data. The Echinobase information system focuses on information from eight echinoderm research models: Strongylocentrotus purpuratus, Strongylocentrotus fransciscanus, Allocentrotus fragilis, Lytechinus variegatus, Patiria miniata, Parastichopus parvimensis and Ophiothrix spiculata, Eucidaris tribuloides. The goal of Echinobase is to support molecular biological science including developmental processes and gene regulatory networks.
Zosterocarpus abyssicola is a species of brown algae endemic to the Galapagos islands.
Lytechinus pictus, commonly known as the painted urchin, is a sea urchin in the family Toxopneustidae. It occurs on shallow reefs in the tropical and subtropical eastern Pacific Ocean, off the coasts of California, Central America and South America as far south as Ecuador.
Eucidaris galapagensis is a species of cidaroid sea urchin that inhabits littoral regions of the Galápagos, Clipperton, and Cocos. It used to belong to the subspecies E. thouarsii to the slate pencil urchin, but is now recognized as its own species separated by the aforementioned regions.
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