I mean yeah but all species of horseshoe crabs only live in three places on earth. I can only speak for limulus polyphemus, which only lives on the East Coast of the US (from the Gulf of Mexico to Maine), but I'm not sure how much other species are even bled. Actually to be honest I'm not even sure they have the same extra cellular protein that is collected from the blood.... Possibly should look into that. Maybe I could get some funding to travel to Indonesia for blood samples.