Fig. 12 in Comparative 3D microanatomy and histology of the eyes and central nervous systems in coleoid cephalopod hatchlings

Fig. 12 Rossia macrosoma hatchling: histology of the head region (transversal sections; Trichrome de Masson staining, except f: Azan staining; see also interactive supplementary figure 2). a Overview with selected planes B-H (3D reconstruction; left side view). b Base of brachial crown with arms and tentacles. c Base of brachial crown with buccal mass. d Midline of eyes, radula. e Central lobus opticus just behind the eyes. f Central lobus opticus with optic commissure. g Posterior lobus opticus, statocysts with statoliths. h Palliovisceral lobes just at the end of the optic lobes. Labels: a 1– 4=arms 1–4, aco=anterior chamber organ, bm=buccal mass, es= esophagus, ey=eye, fu=funnel, ibl=inferior buccal lobe, ifl=inferior frontal lobe, le=lens, mcl=magnocellular lobe, oc=optic commissure, ofl= olfactory lobe, ol=optic lobe (medullar core), opl=outer plexiform layer, pdl=peduncle lobe, pl=pedal lobe, pvl=palliovisceral lobe, ra=radula, re=retina, sl= statolith, st=statocyst, t=tentacle, tp=tentacular pocket, vtl=vertical lobe, ys=yolk sac