I have thought it right to follow Tschudi in separating from the genus
_Cystignathus_ of Wagler, such species as have large and conspicuous
lumbar glands, particularly as they all agree in possessing a much more
bufonine aspect than the others. The discovery of three new species, all
agreeing in these characters with _Pleurodema Bibronii_ of Tschudi,
increases the importance of the grounds upon which this separation is
made.