Liste des auteurs étudiés
Farran, 1905 (p.40, Descr.F, figs.F); Wolfenden, 1908 (p.35, Rem.); Sars, 1925 (p.131, figs.F); Rose, 1933 a (p.130, figs.F); Bradford & al., 1983 (p.71); Vyshkvartzeva, 2002 (p.94, figs.F); Markhaseva & Schnack-Schiel, 2003 (p.112, Rem.)