Figure 2 in The evolutionary and biomechanical implications of snout and proboscis morphology in Caenogastropoda (Mollusca: Gastropoda)

Figure 2. Transverse histological sections through the snout of four non-caenogastropod taxa. (A) Montfortula rugosa (Fissurellidae) snout; (B) M. rugosa snout wall; (C) Austrocochlea porcata (Trochidae) snout; (D) A. porcata snout wall; (E) Nerita atramentosa (Neritidae) snout; (F) N. atramentosa snout wall; (G) Pyrgulina pascoei (Pyramidellidae) introverted proboscis (H) P. pascoei proboscis wall. Scale bars: (A, C, E) 1 mm; (B, D, F–H) 100 µm; for abbreviations see Appendix 2.