Abstract:
Pleistocene specimens of pied-billed grebes ( Podilymbus) were compared with a series of skeletons
of the modern North American form, Podilymbus
podiceps podiceps. Most of the fossils agreed closely
with this form and are allocated to it. The co-types
of Podilymbus magnus Shufeldt also fall within the
range of variation of this form, hence P. magnus
becomes a synonym of P. podiceps. A new species,
Podilymbus wetmorei, characterized by a wide tarsometatarsus and a heavy femur, is described from
the Pleistocene of Florida.