Palaeonemertea的圖片

描述：

Figure 2.A–B Tubulanus rhabdotus: B detail of the head, mouth and lateral organ (modified from Corrêa 1954) C–E Baseodiscus delineatus: C entire specimen, the worm has expulsed the proboscis D ventral detail of the head E dorsal detail of the head F–I Dushia atra: G dorsal detail of the head H ventral detail of the head I detail of the tail showing the caudal cirrus J–L Lineus stigmatus: J entire specimen, the worm autotomized K ventral detail of the head L lateral detail of the head. b brain, c cirrus, cg cephalic grooves, e eyes, lo lateral organ, m mouth, p proboscis, pp proboscis pore.