Figure 4 in The evolutionary and biomechanical implications of snout and proboscis morphology in Caenogastropoda (Mollusca: Gastropoda)

Figure 4. Transverse histological sections through the snout of three caenogastropod taxa. (A) Serpulorbis sp. (Vermetidae) snout; (B) Serpulorbis sp. snout wall; (C) Bembicium nanum (Littorinidae) snout; (D) B. nanum fused aortic muscles; (E) B. nanum snout wall; (F) Carinaria cristata (Carinariidae) snout; (G) C. cristata accessory retractor muscles; (H) C. cristata snout wall. Scale bars: (A, C, D, F, G) 1 mm; (B, E, H) 100 µm; for abbreviations see Appendix 2.Published as part of Golding, Rosemary E., Ponder, Winston F. & Byrne, Maria, 2009, The evolutionary and biomechanical implications of snout and proboscis morphology in Caenogastropoda (Mollusca: Gastropoda), pp. 2723-2763 in Journal of Natural History 43 (43-44) on page 2731, DOI: 10.1080/00222930903219954, http://zenodo.org/record/521807