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'IN <br />Canada lynx <br />The Canada lynx (Lynx Canadensis), is a medium-sized cat with long legs, well furred paws, <br />long tufts on the ears, and a short black tipped tail. Adult males average 22 pounds and thirty- <br />three inches in length head to tail. Adult females average nineteen pounds and measure thirty- <br />two inches in length. Suitable habitat includes primary habitat of coniferous forests of spruce <br />and fir or lodgepole pine, and secondary habitat of aspen or Douglas-fir mixed with the primary <br />habitat at elevations between 8,000 and 11,500 feet. Lynx also periodically traverse other <br />forested and non-forested habitats including lower elevation woodlands and shrublands. <br />Suitable or potentially suitable habitat that would support lynx, based on existing vegetation, <br />does not exist on or adjacent to the permit area. Therefore, OSM has determined that PR-08 will <br />"not affect" the continued existence of the Canada lynx. <br />Colorado pikeminnow <br />The Colorado pikeminnow (Ptychocheilus lucius is a torpedo-shaped fish with an olive-green <br />and gold back, silver sides and white belly. The Colorado pikeminnow thrives in swift flowing <br />muddy rivers with quiet, warm backwaters and are primarily piscivorous, but smaller individuals <br />also eat insects and other invertebrates. These fish spawn between late June and early September <br />and when they are 5 to 6 years old and at least 16 inches long. Spawning occurs over riffle areas <br />with gravel or cobble substrate. The eggs are randomly splayed onto the bottom, and usually <br />hatch in less than one week. <br />Humpback Chub <br />The humpback chub (Gila cypha) is a streamlined minnow with a concave skull and a prominent <br />nuchal hump at the occiput, the back end of head marked by a line separating scaleless and scaled <br />portions of epidermis with a caudal peduncle thin but not long snout that overhangs upper lip and <br />scales often minute or absent on keel. Adults are dark on top and light below and fins rarely have <br />yellow-orange pigment near base. Adults are usually range from 12-16 inches long and weigh 3/a <br />to 2 pounds. The humpback chub historically ranged in the mainstem Colorado River preferring <br />slower eddies and pools downstream to below the Hoover Dam site, however, present <br />populations are restricted to areas in, and upstream, of the Grand Canyon. <br />Razorback Sucker <br />The razorback sucker (Xyrauchen texanus is brownish-green with a yellow to white-colored <br />belly and has an abrupt, bony hump on its back shaped like an upside-down boat keel. Razorback <br />suckers are found in deep, clear to turbid waters of large rivers and some reservoirs over mud, <br />sand or gravel and like most suckers feeds on both plant and animal matter. Razorback suckers <br />can spawn as early as age 3 or 4, when they are 14 or more inches long. Breeding males turn <br />black up to the lateral line, with brilliant orange extending across the belly. Depending on water <br />temperature, spawning can take place as early as November or as late as June. In the upper <br />Colorado River basin, razorbacks typically spawn between mid-April and mid-June.