FIGURE 8 in Benthic Heterobranch Sea Slugs (Gastropoda: Heterobranchia) from Santa Barbara County, California.

FIGURE 8. Yearly change in abundance of (A) the three most abundant northern nudibranchs at Tar Pits Reef, and (B) and (C) four southern nudibranchs at Tar Pits Reef, 2008–20. Values shown are yearly means ± 1 SE of monthly number of individuals per hour per observer; note separate y-axis in (A) for Doto columbiana.