What are some six letter words with 1st letter P and 2nd letter T and 3rd letter E and 4th letter R?

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern PTER--. That is, six letter words with 1st letter P and 2nd letter T and 3rd letter E and 4th letter R. In alphabetical order, they are:

pteria

pterin