Strange query

Hi, I am running this query from my script: $query = "select gallery_url,description from members limit ".$limit[0].",".$limit[1]; the first time: limit 0,15 and the second time: limit 16,30 the problem is the first time I am getting 15 rows returned (as expected) the second query of select gallery_url,description from members limit 16,30 is returning 17 rows!! I've even tried it within phpmyadmin and its giving me 17 rows....what am I missing here? Thanks, Ryan