Figure 2 in Redescription of Lineus acutifrons Southern, 1913 (Nemertea: Pilidiophora) and comments on its phylogenetic position

Figure 2. External appearance of Lineus acutifrons. (A) Specimen showing the difference between the cylindrical anterior part and the attened posterior part; (B) enlargement of cephalic region in ventral view to show head shape and mouth; (C) enlargement of cephalic region in lateral view to show cephalic slits; (D) enlargement of posterior region to show caudal cirrus. (A–C) are from living specimens; (D) is an image of an anesthetized specimen.