Figure 4. Relative abundances of the most common species in Long Island Sound by longitude. (a) Relative abundance of Elphidium excavatum clavatum in our samples and in samples in BUZAS (1965; samples collected in 1961 and 1962) and PARKER (1952; samples collected in 1948). (b) Relative abundance of Buccella frigida in our samples and in samples in BUZAS (1965; samples collected in 1961 and 1962) and PARKER (1952; samples collected in 1948). (c) Relative abundance of Eggerella advena in our samples and in samples in BUZAS (1965; samples collected in 1961 and 1962) and PARKER (1952; samples collected in 1948). (d) Relative abundance of Ammonia beccarii in our samples and in samples in BUZAS (1965; samples collected in 1961 and 1962) and PARKER (1952; samples collected in 1948).