A heart-shaped burrowing sea urchin which has a thick covering of fine spines on the shell, giving it a furry appearance.
心形海胆
Class Echinoidea, order Spatangoida
Example sentencesExamples
The sandy patches yield burrowing starfish, rare delicate tube anemones, heart urchins, peacock flounders, and many species of nudibranch and sea hare.
Burrowing heart urchins have bands of very fine spines that are termed fascioles that help them live in fine sediments.
So the heart urchin is considered to be secondarily bilaterally symmetrical.
This species of heart urchin is found throughout the Indian and Pacific Oceans, from Mauritius to the coast of Central America.
Occasionally, unusual events or creatures are seen - massed heart urchins for example, or odd fish such as tadpole fish, red mullet, and even trigger fish.
Definition of heart urchin in US English:
heart urchin
nounhärt ˈərCHən
A heart-shaped burrowing sea urchin which has a thick covering of fine spines on the shell, giving it a furry appearance.
心形海胆
Class Echinoidea, order Spatangoida
Example sentencesExamples
So the heart urchin is considered to be secondarily bilaterally symmetrical.
This species of heart urchin is found throughout the Indian and Pacific Oceans, from Mauritius to the coast of Central America.
The sandy patches yield burrowing starfish, rare delicate tube anemones, heart urchins, peacock flounders, and many species of nudibranch and sea hare.
Burrowing heart urchins have bands of very fine spines that are termed fascioles that help them live in fine sediments.
Occasionally, unusual events or creatures are seen - massed heart urchins for example, or odd fish such as tadpole fish, red mullet, and even trigger fish.