2969 Catostomus insignis Baird & Girard, 1854 Catostomidae Suckers Catostominae Cypriniformes Teleostei Sonora sucker North America: Gila and Bill Williams River systems (in Colorado River drainage) in New Mexico and Arizona, USA, and northern Sonora, Mexico. Common but decreasing in southern half of range. UBC 580068 33 N 112 W Catostomus insignis UBC 110396 Catostomus insignis UBC 770039 32 N 108 W Catostomus insignis UBC 770044 32 N 108 W Catostomus insignis AMNH 17289 Catostomus insignis