Yes, she is a harlequin dalmation. At 4 months old she may not have had very many dalmation spots or not enough that the person you purchased her from felt she qualified as a dalmation (some people will call it a dalmation if it has 1 spot, others only if it has a good amount of spots). Dalmation spots tend to develop as the gecko matures--even super dalmations aren't usually born with many spots at all.