Holothuria sanctori reaches 30 cm. Mediterranean and Macaronesia sea cucumber with cylindrical brown-black to purple-brown body with small distinctive white papillae regularly scattered on back. Lives from 5 to 80 m on rocky bottoms, coralligenous and scree of Mediterranean, Macaronesia, tropical East Atlantic. Detritivore. Discreet cousin of H. forskali with characteristic white papillae pattern. Macro photo subject for diversified sea cucumber enthusiasts.

