Systematic review of the neotropical shovelnose catfish genus Sorubim Cuvier (Siluriformes: Pimelodidae). Author Michael W. Littmann text Zootaxa 2007 1422 1 29 http://www.zoobank.org/urn:lsid:zoobank.org:pub:1CCCAEFE-5AEB-4489-94D3-0E5BCBB65DB1 journal article z01422p001 1CCCAEFE-5AEB-4489-94D3-0E5BCBB65DB1 Sorubim trigonocephalus : Brazil : MNRJ 882 (1:317 mm SL*), holotype , Mato Grosso , Porto Velho, rio Madiera, A. Mirando-Ribeiro ; MNRJ 852 (1:339 mm SL*), Mato Grosso , Paranatinga, Mirando-Ribeiro, 1909, A. MirandoRibeiro ; USNM 194403 (1:507 mm SL*), Mato Grosso , rio Tapajos, 1962, Schultz .