title: Ureotelism of Echidna and Platypus.
abstract: Analyses of plasma and urine and the demonstration of arginase in the liver indicate that both the adult echidna (Tachyglossus aculeatus) and platypus (Ornithorhynchus) are ureotelic.
authors.forename: D A
authors.initials: DA
authors.lastname: Denton
authors.forename: M
authors.initials: M
authors.lastname: Reich
authors.forename: F J
authors.initials: FJ
authors.lastname: Hird