Galapagos
Finches (Geospiza spp.)
Color
plates by Elizabeth Gould from Volume 3 of "Zoology of the
Voyage of the HMS Beagle" (1837). Her husband
John provided the taxonomic descriptions. He identified
fifteen new species that were unique to the Galapagos
Archipelago, and which varied widely in beak morphology,
even between adjacent islands.
.