ANNAPOLIS, Md. - A crab species from China has been discovered in the Patapsco River, state authorities said Friday, prompting fears about the potentially invasive species' presence in the Chesapeake Bay. The crab, a mature male Chinese mitten crab, was collected at the mouth of the Patapsco several weeks ago by a commercial waterman using fishing crab pots. The species, scientific name Eriocheir sinensis, is considered a potentially invasive species, the state Department of Natural Resources said Friday. "This is the first confirmed recorded case for the Chesapeake Bay," Lynn Fegley, a DNR fisheries biologist said in a statement. "Only...