Small but numerous spines of the common sand dollar are its primary tool for burrowing within the upper few centimeters of sandy ocean bottoms.
Small but numerous spines of the common sand dollar are its primary tool for burrowing within the upper few centimeters of sandy ocean bottoms. Other specialized spines hold sand and debris aloft while food particles are ingested.
CLASS: Echinoidea (heart urchins, sand dollars, and sea urchins)
ORDER: Clypeasteroida (sand dollars)
FAMILY: Echinarachniidae
GENUS/SPECIES: Echinarachnius parma
Size: Average 3 in (7.6 cm) in diameter
Diet: Crustacean larvae, organic matter, diatoms, algae
Habitat: Native to the Northern Hemisphere in the sandy bottoms of the coasts
With fun facts about more than 100 animals, this long-awaited Aquarium Guide includes beautiful pictures and reveals the incredible facts and design features that point to our amazing Creator. This handy size guide is excellent for school field trips and family trips to your favorite aquarium!
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