From and Function of the Primary Spines of Two Bathyal Echinothuriid Sea Urchins.Published in:Acta Zoologica, 1998, v. 79, n. 2, p. 101, doi. 10.1111/j.1463-6395.1998.tb01149.xBy:Emson, Roland H.;Young, C. M.Publication type:Article