title: [Preliminary observations on structure and ultrastructure of the frontal organ of Alytes obstetricians Laur. at the beginning of metamorphosis].
mesh_terms: D000818:Animals; D001001:Anura; D008675:Metamorphosis, Biological; D008854:Microscopy, Electron; D010870:Pineal Gland / Q000166:cytology*
vernacular_title: Observations préliminares sur la structure et l'ultrastructure de l'organe frontal d'Alytes obstetricians Laur. au début de la métamorphose.