Delturinae, a new loricariid catfish subfamily (Teleostei, Siluriformes), with revisions of Delturus and Hemipsilichthys Author Reis, Roberto E. Author Pereira, Edson H. L. Author Armbruster, Jonathan W. text Zoological Journal of the Linnean Society 2006 2006-06-30 147 2 277 299 https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2006.00229.x journal article 3216 10.1111/j.1096-3642.2006.00229.x d863a5df-9418-4ed5-a8da-9ce9a673e25f 0024-4082 4687405 CLADE HEMIPSILICHTHYS GOBIO + HEMIPSILICHTHYS PAPILLATUS Diagnosis: Three of the characteristics described for H. gobio by Armbruster (2004) were also found in H. papillatus , and constitute synapomorphies for these two species: (1) 16–20 vertebrae from first normal neural spine (without bifid neural spine) behind dorsal fin up to hypural plate (a reversal, character 121–0); (2) distal margin of transverse process of Weberian apparatus pointed (character 132–1); and (3) posterior cleithral process reduced in size (character 157–1). In addition, Pereira et al . (2000) described two unique and unreversed synapomorphies for these two species: (1) anal fin of nuptial females much longer than in males; and (2) papillae in upper lip fused to form four or five transverse, elongate skin folds.