steganopodes

from The Century Dictionary.

• An order of natatorial birds, consisting of those which have all four toes webbed and a more or less developed gular pouch; the Totipalmatæ.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) A division of swimming birds in which all four toes are united by a broad web. It includes the pelicans, cormorants, gannets, and others.