description Rhynobrissus cuneus Overview
Rhynobrissus cuneus is a rare irregular sea urchin in the family Brissidae and order Spatangoida, a group commonly called heart urchins. C. Wythe Cooke described it in 1957 from specimens found near North Carolina; later records came from fine sand at shallow depth in Veracruz, Mexico, and from Florida’s Atlantic coast. Its wedge-shaped test and infaunal life in sandy marine sediments distinguish it within the named genus.
help Rhynobrissus cuneus FAQ
What kind of animal is Rhynobrissus cuneus?
Rhynobrissus cuneus is a rare irregular sea urchin in the family Brissidae and order Spatangoida. Spatangoids are commonly called heart urchins because of their shape.
Who described Rhynobrissus cuneus?
C. Wythe Cooke described Rhynobrissus cuneus in 1957. The original specimens came from North Carolina.
Where has Rhynobrissus cuneus been found?
The species was first described from specimens found near North Carolina, and later records came from fine sand at shallow depth in Veracruz, Mexico. These records indicate a marine habitat rather than a freshwater one.
Is Rhynobrissus cuneus a regular or irregular sea urchin?
It is an irregular sea urchin belonging to the heart-urchin group Spatangoida. Unlike the familiar round radial form of many regular sea urchins, irregular species are adapted to life in or on sediment.
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