2966 Pantosteus discobolus (Cope, 1871) Catostomidae Suckers Catostominae Cypriniformes Teleostei Bluehead sucker North America: Snake River system (Columbia River drainage), Wyoming, and Idaho; Lake Bonneville basin, Idaho, Wyoming and Utah; south through upper Colorado river drainage (Grand Canyon and above), Wyoming, Colorado, Utah, New Mexico and Arizona in the USA. Two subspecies were recognized: <i>Catostomus discobolus discobolus</i> and <i>Catostomus discobolus jarrovii</i>. AMNH 64581 1968 Catostomus discobolus AMNH 64584 1968 Catostomus discobolus