Notice on the occurrence of supernumerary teeth in the two-toed sloths Choloepus didactylus and C. hoffmanni 26 de abril de 201912 de julio de 2019 Webmaster Robert K. McAfee, Virginia L. Naples Nota Palabras clave: anomalía dentaria, Choloepus, dental anomaly, dientes supernumerarios, Megalonychidae, supernumerary teeth, Xenarthra