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I own a Phormictopus Cancerides, which I guess would be of the same gene or however that science stuff works. The particular species I have distributes aggressive behaviours and its venom is mild yet supposedly very painful. Hope that helps, if anyone else can shed some light because I dont know that that would make them similar for sure.
They are indeed of the same genus, but like jon3800 on YouTube says the Haitian brown/phormictopus cancerides is evil haha, also read what was said about this one in question. Will provide more links.