Harelip Sucker (Lagochila lacera). Field Museum of Natural History, Chicago. FMNH no. 1847. Conservation status: extinct. In 2004 this species was renamed Moxostoma lacerum. The last specimen was collected in 1893 and by the 1970's it was considered extinct. It is the fish species lost from the largest number of American states. Its decline is likely due to siltation of its habitat in clear, swift gravel bottom streams in the eastern United States during the early 1800's as forests were felled and replaced by agriculture.