Brain structure of S. japonica [33]. (A) A whole figure of live S. japonica, (B) fresh brain after dissection (the needle points to the location of optic gland in the brain), (C) transection of the brain (the above part is the cuttlefish back), (D) supraesophageal mass (longitudinal section, left side is anterior), (E) subesophageal mass (longitudinal section, left side is anterior). Abbreviations: pl, peduncle lobe; og, optic gland; dlL, dorsal lateral lobe; olf, olfactory lobe; v, vertical lobe; sv, subvertical lobe; oes, esophagus; ot, optic tract; ol, optic lobe; c, cartilage; fr.s, superior frontal lobe; fr.i, inferior frontal lobe; bl, brachial lobe; ab, anterior basal lobe; pc, precommissural lobe; voc, ventral optic commissure; spl, subpeduncle lobe; pb, posterior basal lobe; ap, anterior pedal lobe; pp, posterior pedal lobe; pvl, palliorisceral lobe; mag, magnocellular lobe.