Figure 12 in The genus Grimpoteuthis (Octopoda: Grimpoteuthidae) in the north-east Atlantic, with descriptions of three new species

Figure 12. Grimpoteuthis challengeri sp. nov: internal anatomy. Ventral view of the viscera in situ (A); detail of the digestive system (B); optic nerve and white body (C) lower and upper beaks (D); dorsal, ventral and lateral view of shell (E: all BMNH 20030376). Scale bars = 15 mm (A); 20 mm (B,E); 10 mm (C,D).