Figure 8 in The evolutionary and biomechanical implications of snout and proboscis morphology in Caenogastropoda (Mollusca: Gastropoda)

Figure 8. Transverse histological sections through the proboscis of two epitoniid taxa. (A) Janthina janthina (Epitoniidae) proboscis and aortic muscles; (B) J. janthina proboscis wall; (C) Opalia ballinensis (Epitoniidae) introverted proboscis and accessory proboscis retractor muscles (D) O. ballinensis aortic muscles; (E) O. ballinensis proboscis wall. Scale bars: (A, C) 1 mm; (B, E) 100 µm; (D) 500 µm; for abbreviations see Appendix 2.