FIGURE 3. Anthopleura artemisia. A in Intertidal sea anemones (Cnidaria: Actiniaria) from the west coast of the Peninsula of Baja California, Mexico

FIGURE 3. Anthopleura artemisia. A) oral disc and tentacles. B) detail of acrorhagi in the margin. C) marginal projections with verrucae. D) detail of expanded column and pedal disc. E) column and tentacles slightly contracted. F) cross section of column at the level of the actinopharynx. G) cross section of column showing the retractor and parietobasilar muscles. H) longitudinal section of the distal column showing marginal sphincter muscle. (I–Y) Cnidae. tentacles: (I) basitrich, (J) spirocyst; acrorhagi: (K) holotrich I, (L) holotrich II, (M) basitrich, (N) spirocyst; actinopharynx: (O) basitrich, (P) p-mastigophore A; column: (Q) holotrich, (R) basitrich I, (S) basitrich II, (T) basitrich III, (U) spirocyst; filaments: (V) basitrich I, (W) basitrich II, (X) p-mastigophore A, (Y) b-mastigophore. Abbreviations. acr: acrorhagi, c: column, ep: epidermis, me: mesoglea, od: oral disc, pbm: parietobasilar muscles, pd: pedal disc, rm: retractor muscles, s: siphonoglyph, sp: sphincter, vr: verrucae. Scale bars. A–E: 20 mm; F, H: 200 µm, G: 500 µm; I–Y: 15 µm.