Maragogype, means Elephant foot and refers to the large size of the bean, which is far larger than the Colombian Excelso which is also named after its large size.
 
It's a mutant variety from the Bourbon coffee plant, which has huge leaves, large cherries and huge long shaped beans with a double cut centre. The tree produces fewer cherries giving a  more concentrated flavour with hints of chocolate, berries and treacle.