liek how many typos?
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I'm going to give you a very rough estimate of 302 allow for it to be at least within ten off, and also note, I couldn't find estimate so I had to add them myself off of a list that might be out of date because animals go extinct often and animals are often discovered. Also note that I had to take these of off a Marine mammology list, so it includes freshwater marine animals. Also note that this list included subspecies. I hope someone else can give you a more satisfactory answer, but I tried.