Some species of the order Velatida(A–H) and Forcipulatida(I–M) recorded in northeastern Brazil. Calyptraster coa (A–H)A Abactinal view, in detail the supradorsal membrane B Actinal view C Detail of the paxillae with long peduncles D Actinal view of the arm E Detail of the mouth F Detail of the actinal intermediate area G Abactinal view, in detail oscular valves H Actinal view; Coscinasterias tenuispina (I–M)I Abactinal view J Actinal view L Abactinal view of the arm, in detail the bivalve pedicallariae (optical microscopic image), and M Lateral view of the arms, in detail the bivalve pedicellariae (optical microscopic image).