[Observations on the formation of horny teeth of the lamprey, Entosphenus japonicus].
D000818:Animals; D005399:Fishes / Q000033:anatomy & histology*; D007798:Lampreys / Q000033:anatomy & histology*; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure; D009805:Odontogenesis; D014070:Tooth / Q000196:embryology / Q000502:physiology / Q000648:ultrastructure*