Clypeaster
Clypeaster, common name "cake urchins" or "sea biscuits", is a genus of echinoderms belonging to the family Clypeasteridae.
Etymology
The genus name Clypeaster is derived from the Latin “clypeus” and “aster”, with reference to the shape of these organisms.
Clypeaster aloysioi Clypeaster amplificatus Koehler, 1922Clypeaster annandalei Koehler, 1922Clypeaster australasiae Clypeaster chesheri Serafy, 1970Clypeaster cyclopilus H.L. Clark, 1941Clypeaster durandi Clypeaster elongatus H.L. Clark, 1948Clypeaster euclastus H.L. Clark, 1941Clypeaster europacificus H.L. Clark, 1914Clypeaster eurychorius H.L. Clark, 1924Clypeaster euryptealus H.L. Clark, 1925Clypeaster fervens Koehler, 1922Clypeaster humilis Clypeaster isolatus Serafy, 1971Clypeaster japonicus Döderlein, 1885Clypeaster kieri Pawson & Phelan, 1979Clypeaster lamprus H.L. Clark, 1914Clypeaster latissimus Clypeaster leptostracon A. Agassiz & H.L. Clark, 1907Clypeaster luetkeni Mortensen, 1948Clypeaster lytopetalus A. Agassiz & H.L. Clark, 1907Clypeaster microstomus Lambert, 1912 †Clypeaster miniaceus H.L. Clark, 1925Clypeaster minihagali Deraniyagala, 1956 †Clypeaster nummus Mortensen, 1948Clypeaster ochrus H.L. Clark, 1914Clypeaster ohshimensis Ikeda, 1935Clypeaster oliveirai Krau, 1952Clypeaster pallidus H.L. Clark, 1914Clypeaster pateriformis Mortensen, 1948Clypeaster prostratus Clypeaster rangianus Desmoulins, 1835Clypeaster rarispinus de Meijere, 1903Clypeaster ravenelii Clypeaster reticulatus Clypeaster rosaceus Clypeaster rotundus Clypeaster speciosus Verrill, 1870Clypeaster subdepressus Clypeaster telurus H.L. Clark, 1914Clypeaster tumidus Clypeaster virescens Döderlein, 1885