Figure 7. Morphology of buccal apparatus and osphradium of (A) Pomacea maculata and (B) Pomacea canaliculata. Abbreviations: bg, buccal ganglion; ep, oesophageal pouches; es, oesophagus; os, osphradium; sg, salivary glands; rs, radular sac. Scale bar: 5 mm.