"Retitled update and expansion of Colorado Division of Wildlife Technical publication no. 38, Descriptions and identification of razorback, flannelmouth, white, Utah, bluehead, and mountain sucker larvae and early juveniles." "DOW-R-T-42-04." "September 2004." Computer-interactive key to eggs, larvae, and early juveniles of catostomid fishes in the upper Colorado River Basin / Darrel E. Snyder, April 2003; July 2004 update.--CD-ROM label.