Creagrutinae Miles, 1943, new usage

Type genus Creagrutus Günther, 1864 .

Included genera: Caiapobrycon Malabarba and Vari, 2000, Creagrutus, and Microgenys . Not sampled: Carlastyanax .

Definition: The least inclusive crown clade that contains Creagrutus muelleri (Günther 1859), Caiapobrycon tucurui Malabarba and Vari, 2000, and Microgenys minuta Eigenmann, 1913 . This is a minimum-crown-clade definition. See Figure 3 for a reference phylogeny of Creagrutinae. Although not included in the reference phylogeny, Creagrutus muelleri resolves in a clade with other species of Creagrutus in a phylogenetic analysis of morphological characters (Vari and Harlod 2001).

Etymology: From the ancient Greek κΡεάγΡευτος (kɹˈiːɡɹuːtˈɑːs) meaning tearing off flesh.

Remarks: Mirande et al. (2013) and Thomaz et al. (2015) resolved a clade containing Creagrutus and Carlastyanax . Mirande (2019) later expanded Creagrutini to include Planaltina, Lepidocharax, and Microgenys with two subclades: one with L. burnsi Ferreira et al., 2011 and P. britskii Menezes et al., 2003 (see Planaltininae), and the second containing Microgenys, Carlastyanax, and Creagrutus . Ferreira et al. (2021) delimited Creagrutini to include Carlastyanax, Creagrutus, and Microgenys that was supported with 12 morphological synapomorphies. Our UCE phylogeny resolves Microgenys as the sister-lineage of a paraphyletic Creagrutus (Fig. 3). Caiapobrycon tucurui is nested within Creagrutus (Fig. 3). We delimit Creagrutinae to include the genera Caiapobrycon, Creagrutus, Microgenys, and Carlastyanax .