Wrong name for Tell Township, Huntingdon County, PA in 1840 census

1840 U.S. census for Huntingdon County, Pennsylvania. Ancestry.com and FamilySearch both list a "Fell" Township in their browse feature. This appears to be a transcription error. There never was a "Fell" Township in Huntingdon County. There was, and is, a Tell Township, created in April 1810. No Tell Township is listed in the browse features for the 1840 census. How is this Township identified in the Archive copy of the census? Also, how do I cite this township? Name is "Tell," which it is? Name it "Fell" but add [Tell]? Name it "Fell" but add a note at the end of the census explaining the actual name?