Scientific Name Common Name Global Rank State Rank Federal Status WI Status Animal Group

Sheepnose (Plethobasus cyphyus)








Photo by Illinois Natural History Survey


Counties with Mapped NHI Occurrences

Sheepnose (Plethobasus cyphyus), formerly referred to as Bullhead, is both State and Federally Endangered in Wisconsin. This species is found in clean water of large rivers in the Western part of the state. It prefers a stable sand substrate but has been found in mixed sand and gravel. It is always rare where it is found. The only known fish host that has been reported is the sauger.


Species of Greatest Conservation Need (SGCN) are associated with habitats (or natural communities) and places on the landscape. Understanding relationships among SGCN, natural communities and ecological landscapes help us make decisions about issues affecting SGCN and their habitat and how to respond. Download the Wildlife Action Plan association score spreadsheet to explore rare species, natural communities and ecological landscape associations

Conservation actions respond to issues or threats, which adversely affect species of greatest conservation need (SGCN) or their habitats. Besides actions such as restoring wetlands or planting resilient tree species in northern communities, research, surveys and monitoring are also among conservation actions described in the Wisconsin Wildlife Action Plan because lack of information can threaten our ability to successfully preserve and care for natural resources.