10173 Platygobio gracilis (Richardson, 1836) Leuciscidae Minnows Pogonichthyinae Cypriniformes Teleostei Flathead chub North America: Mackenzie, Saskatchewan, and Lake Winnipeg drainages in Canada; Missouri-Mississippi River basin from southern Alberta in Canada and Montana to Louisiana, USA; Arkansas River drainage in USA; and upper Rio Grande (including Pecos) drainage in New Mexico, USA. Two subspecies usually recognized: <i>Platygobio gracilis gracilis</i> in northern and eastern parts of range, and <i>Platygobio gracilis gulonella</i> in southern and western parts of range. UBC 570224 58 N 122 W Platygobio gracilis UBC 570347 58 N 110 W Platygobio gracilis UBC 570355 54 N 113 W Platygobio gracilis UBC 570357 49 N 110 W Platygobio gracilis UBC 570359 49 N 111 W Platygobio gracilis UBC 570375 49 N 112 W Platygobio gracilis UBC 580154 53 N 101 W Platygobio gracilis UBC 580173 56 N 121 W Platygobio gracilis UBC 580299 58 N 122 W Platygobio gracilis UBC 580327 58 N 122 W Platygobio gracilis UBC 590465 42 N 92 W Hybopsis gracilis UBC 600251 49 N 97 W Platygobio gracilis UBC 600346 66 N 134 W Platygobio gracilis UBC 600355 58 N 122 W Hybopsis gracilis UBC 600355 58 N 122 W Platygobio gracilis UBC 610314 55 N 119 W Platygobio gracilis UBC 610347 58 N 116 W Platygobio gracilis UBC 610348 58 N 116 W Platygobio gracilis UBC 610349 58 N 116 W Platygobio gracilis UBC 60255 56 N 127 W Platygobio gracilis UBC 760088 65 N 129 W Platygobio gracilis UBC 770049 58 N 122 W Platygobio gracilis UBC 540460 56 N 120 W Platygobio gracilis UBC 540461 56 N 120 W Platygobio gracilis UBC 540471 58 N 122 W Platygobio gracilis UBC 560001 49 N 110 W Platygobio gracilis UBC 650778 64 N 124 W Platygobio gracilis UBC 650778 64 N 124 W Platygobio gracilis