Animals which excrete urea produced during metabolism of amino acids are
Ureotelic
Ureotelic animals - Excrete urea. Example: Amphibians
Uricotelic animals - Excrete uric acid. Examples: Reptiles and insects
Ammonotelic animals - Excrete ammonia. Example: Bony fish
Aminotelic animals - Excrete excess of amino acids. Examples: Molluscs and echinoderms