title: Ultrastructure of Merkel cell development in aneurogenic and control amphibian larvae (Ambystoma).
mesh_terms: D000557:Ambystoma / Q000254:growth & development*; D000818:Animals; D005552:Forelimb / Q000294:innervation; D007814:Larva; D008465:Mechanoreceptors / Q000648:ultrastructure*; D009420:Nervous System / Q000196:embryology*; D014034:Toes / Q000294:innervation