The solenia-type gastroderm in the coenenchyme
has many acid phosphatase-positive cells, indicating the likely presence of acidic vesicles (possible lysosomes).
Typically, they show a bright orange coloration of the polypar coenenchyme
. Polyps, 4 mm in transverse diameter, are irregularly arranged around the stem in the basal portion (Fig.
Thus, the extra-modular biomass in octocorals (i.e., the coenenchyme
) and compound ascidians (i.e., the gelatinous matrix) should favor allometric scaling (Jackson, 1979; Sebens, 1987a).
Parerythropodium fulvum fulvum (Forskal, 1775), a symbiotic alcyonarian soft coral characterized by an encrusting growth form, a thin coenenchyme
, and short polyp cavities, is common in shallow waters of the Israeli Red Sea coast (Benayahu and Loya, 1983).