Figure 4. A in New data on Aplidium tabarquense (Tunicata: Ascidiacea) distribution in the Adriatic Sea

Figure 4. A) Posterior region of a zooid showing the gonads in the postabdomen. ab, abdomen; pa, postabdomen; ov, ovary; ts, testis. B) Postabdomen region with ovary, composed of three oocytes and an embryo. oo, oocytes; em, embryo. C) Postabdomen with testicular follicles. tf, testicular follicles. D) Larva with ectodermal vesicles, white arrows pointing out 3 adhesive organs. ev, ectodermal vesicles; am, pointed ampullae; ao, adhesive organs.