Box Jellyfish or Sea Wasp

Order Cubomedusae 

These 3 specimens were found just off shore in shallow water. I cannot find a specific ID. I don't know if they are Sea Wasps because although they have 4 tentacles they don't have an elongated body and were smaller. (Unless these are all juveniles). Not all box jellyfish are deadly. In fact I noticed one of these when my wrist was touched by something in the water. I did not have any type of reaction. I wouldn't, however, ever assume any Box Jellyfish or Sea Wasp was non-toxic.