Figure 92. Geographic distribution of Stichopilium bicorne. N: total number of positive records [total number of samples where the species was presumably sought], for water-column (above 150 m and below 150 m; plankton and sediment trap materials) and surface sediment materials. Sources: A, Boltovskoy and Riedel (1987); B, Haeckel (1887); C, Takahashi (1991); D, Original; E: Original.