It is hard to tell from the picture on how big it was. There are many species of Gehyra and more that have not been identified. At first glance assuming it was a pretty large animal it looks like marginata...but it is psoobly vorax too. Most of the imports that are being called vorax actually are not they are mostly marginata too. One person started with the vorax and it stuck. My oceanica has the yellow ventral as well but it is not quite as large. I do have c.b marginata that are more yellow too. Maybe it is some sort of locality thing with Gehyra from that certain area. Anyway....hope that helps.