What was the name of Captain Archer's dog in the U.S. TV series "Star Trek: Enterprise"?

At one point after Archer becomes an Admiral, Mr. Scott tests the new energizer using Porthos. No one knew where Porthos had gone after energizing.

My first comment, just checking to see how it's done. I can't see how to do it on other posts where there are already comments. There's no apparent comment box, only the option to reply. Is that how all the comments get on there--one person posts and the others are replies?