Description
The green sea urchin has a globular test (shell) densely covered in spines and can reach a diameter of around 11 centimetres (4.3 in). The test may be purple, green or dull red, blotched with white. The majority of the spines are short but there are a few longer primary spines. The spines vary in colour, sometimes being one colour at the base and a different colour at the tip. Green test with green spines or green test with white spines are the commonest combinations found in the Caribbean. In between the spines are pedicellaria, pincer like structures. These are white which distinguishes the green sea urchin from the rather similar Lytechinus williamsi which has purple pedicellaria.
Read more about this topic: Lytechinus Variegatus
Famous quotes containing the word description:
“It [Egypt] has more wonders in it than any other country in the world and provides more works that defy description than any other place.”
—Herodotus (c. 484–424 B.C.)
“A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else.”
—John Locke (1632–1704)
“Whose are the truly labored sentences? From the weak and flimsy periods of the politician and literary man, we are glad to turn even to the description of work, the simple record of the month’s labor in the farmer’s almanac, to restore our tone and spirits.”
—Henry David Thoreau (1817–1862)