New species of the catfish genus Trichomycterus (Siluriformes, Trichomycteridae) from the headwaters of the rio São Francisco basin, Brazil. Author Wolmar Benjamin Wosiacki text Zootaxa 2004 592 1 12 http://www.zoobank.org/urn:lsid:zoobank.org:pub:003431F8-DD57-4C9A-ACF9-B7F180E65729 journal article z00592p001 7907434C-6261-48ED-9034-27A3F4115F6E T. hasemani CAS 54584 (36 ex.) Paratypes; FMNH 56424 (X-ray) Holotype; FMNH 56425 (2 X-ray) Paratypes; MZUSP 23600 (5 ex. C&S);