FIGURE 3 in Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil

FIGURE 3. Morphological characters of Eucidaris tribuloides (UFPB/ECH.1902). (A) Aboral view; (B) Oral view; (C) Lateral view; (D) Valve of tridentate pedicellariae; (E) Spicules of tube feet; (F) Valve of globiferous pedicellariae; (G) Aboral view of naked test; (H) Oral view of naked test; (I) Tube foot ossicle; (J) Detail of apical system; (K) Detail of peristome; (L) Ambulacral plates; (M) Interambulacral plates.