Tartarocreagris texana
Tartarocreagris texana is a species of arachnid in family Neobisiidae. It is endemic to Texas in the United States, where it is known from only two caves in Travis County. It is a federally listed endangered species of the United States. This pseudoscorpion is about 4 millimeters long. It is a troglobite, spending its entire life in caves. It is eyeless. It has no tail and no stinger. It has pincers which it uses to capture small arthropods.