Tetradactyle: with four fingers or finger-like processes.
"Explanation of Terms Used in Entomology" by John. B. Smith
This and the succeeding group are tetradactylous; having one toe behind, three forwards.
"Remarks on some fossil impressions in the sandstone rocks of Connecticut River" by John Collins Warren
The fore-feet are pentadactyle, but functionally tetradactyle; the hind-feet tridactyle.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard