Fig. 6 in Crossing the polar front-Antarctic species discovery in the nudibranch genus Tritoniella (Gastropoda)

Fig. 6 Schematic drawings of the male reproductive system showing vas deferens (vd) and penial papilla (pp). A, Tritoniella belli. B, T. gnocchi n. sp. C, T. prinzess n. sp., pp was attached to penial sheath