Figure 22 in Refining molluscan characters: morphology, character coding and a phylogeny of the Caenogastropoda

Figure 22. Kidney morphology; basal caenogastropods with undifferentiated lamellae. (A) Neocyclotus dysoni ambiguum, lateral view. Dotted line indicates removed lateral lobe overhanging pericardium. Scale bar = 1 mm. (B) Bithynia tentaculata, dorsal view. Scale bar =.5 mm. (C) Petaloconchus varians, ventral view. Horizontal line indicates base of mantle cavity. Excretory tubules within pallial portion revealed by ventral incision. Scale bar = 0.5 mm. (D) Strombus mutabilis. Dorsal view. Scale bar = 1 mm. Abbreviations: arv, afferent renal vessel; au, auricle; ng, nephridial gland; np, nephropore; per, pericardium; rpc, reno-pericardial canal; ve, ventricle.