Fig. 7 in Morphology of larval and postlarval stages of Priapulopsis bicaudatus (Danielssen, 1869) (Priapulida) from the north atlantic ocean

Fig. 7. Postlarval stages: general shape. A. Specimen V13482 with partly everted introvert (in), trunk (tr) and one caudal appendage (ca). B. Specimen V13491. C. Two specimens of V13497 with asymmetrical caudal appendages, the left one with a small bud (arrow), the right one with two equally long, but unequally thick appendages (arrow on the thinner appendage). D-G. Four different specimens from V13493 with differently everted introverts, different contraction stages of the trunk and different development of the caudal appendage. Arrows in F and G point at the smaller second appendage. Note segmented longer appendage in G. H. Adult specimen V13492 in overview. I. Posterior view, showing the paired caudal appendage. Note the structural change at the ventral midline (vml).