Webur•chin (ˈɜr tʃɪn) n. 1. a mischievous boy. 2. any small boy or youngster. 3. sea urchin. 4. Chiefly Brit. Dial. hedgehog. [1300–50; Middle English urchun, urchon hedgehog < Old North French (h)erichon, Old French heriçun < Vulgar Latin *hēricionem, acc. of … WebSea urchins are dioecious, meaning they either contain male or female reproductive organs. They contain five gonads tucked under the test. These are located close to the anus and are protected by genital plates. One of these plates is perforated, and …
Sea urchin Description, Anatomy, & Facts Britannica
Web9 Mar 2024 · Sea urchins are also called sea hedgehogs, sand dollars, and sea biscuits. Sea urchins are animals that are typically small, spiny, and round. They live in all the earth’s … WebLatin Name. Strongylocentrotus franciscanus. Group Name. Invertebrates. Taxonomy details. Habitat. Red sea urchins are found in the Pacific Ocean, from the coast of Alaska … eaton westminster
Sand Dollar - Description, Habitat, Image, Diet, and Interesting Facts
WebThe sea urchin is the first animal with a sequenced genome that (1) is a free-living, motile marine invertebrate; (2) has a bilaterally organized embryo but a radial adult body plan; (3) … WebLatin Name: Enhydra lutris Habitat: Northern and eastern North Pacific Ocean Size: Length: 3.3-4.9 ft ; Weight: 31-99 lbs. Diet: Sea urchins, clams, mussels, and crabs Conservation Status: Endangered These omnivores are the largest member of the weasel family, but the smallest marine mammal in all of North America. WebUnlike other sea urchins, they have very short spines with a texture similar to velvet. These creatures vary greatly in size. Some measure just two or three inches across, while others reach five or six inches across. Most individuals weigh less than an ounce. ... Their appearance is similar to that of a biscuit, hence the name “sea biscuit eaton westminster sc