Dear Jackie,

I decided to do a little search on equus, and found this curiosity on OneLook:

E"quus (?), n. [L., horse.] (Zoöl.) A genus of mammals, including the horse, ass, etc.

Not much on this 1913 Webster's site of use, but what's interesting in the above paste is the question mark. Why is that question mark embedded in the entry? Beats me.

Equably yours,
WordWrestler