Search results
Results From The WOW.Com Content Network
Urchin Software Corporation, a US web analytics company owned by Google Urchin (software), a series of web analytics developed by the Urchin Software Corporation (now Google Analytics) "Urchin" was the code name for the modulated neutron initiator design used in the earliest American implosion atomic bombs
Toxopneustes pileolus, commonly known as the flower urchin, is a widespread and commonly encountered species of sea urchin from the Indo-West Pacific. It is considered highly dangerous, as it is capable of delivering extremely painful and medically significant stings when touched.
Colobocentrotus atratus, commonly named the helmet urchin or shingle urchin, is a species of sea urchin in the family Echinometridae. [1] In Hawaii, it is called hāʻukeʻuke . It is found on wave-swept intertidal shores in the Indo-West Pacific , particularly on the shores of Hawaii .
Mespilia globulus, the globular sea urchin, sphere sea urchin, or tuxedo urchin (trade name), is a sea urchin occurring in tropical shallow reef habitats. [1] The specific name refers to a small ball or spherule, describing its overall shape/morphology. [1] It is the only species in the genus Mespilia. [2]
Echinocyamus pusillus, commonly known as the pea urchin or green urchin, is a species of sand dollar, a sea urchin in the family Fibulariidae, native to the northeastern Atlantic Ocean and the Mediterranean Sea. It buries itself in gravel or coarse sand at depths down to about 1,250 m (4,000 ft).
Centrostephanus coronatus, also known as crowned sea urchin, is a species of sea urchin in the family Diadematidae. It was first described to science by Yale zoology Professor Addison Emery Verrill in 1867.
Psammechinus miliaris is often found covered in debris (empty shells, algae, gravel...) possibly for camouflage against predatory fishes. Brittany, France. Psammechinus miliaris is a species of sea urchin in the family Parechinidae.
The name urchin is an old word for hedgehog, which sea urchins resemble; they have archaically been called sea hedgehogs. [6] [7] The name is derived from the Old French herichun, from Latin ericius ('hedgehog'). [8] Like other echinoderms, sea urchin early larvae have bilateral symmetry, [9] but they develop five-fold symmetry as they mature ...