in contrast to australian macropodidae , which have peculiar neurohypophysial peptides , namely mesotocin and two pressor peptides , lysine vasopressin and phenypressin , the south american oppossum , didelphis marsupialis , has oxytocin , lysine vasopressin , and arginine vasopressin .
C0032017
neurohypophysial peptides
C0030095
oxytocin