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Coelopleurus (Keraiophorus)
maillardi:
Spines : Long collar,
border with the spine bowed. Secondary spines not
club-shaped. Colour of the primary spines; yellowish green
with purple bands. The secondary spines are red.
Test : Low test,
ambulacra swollen.
Apical system : One single series of tubercles in a
line close to the periproct.
Interambulacra
: Primary tubercles not above the ambitus
Pedicellariae :
Ophicephalous pedicellariae present in different sizes.
Valves constricted.
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