The complete mitochondrial genomes of <i>Notropis chlorocephalus</i> and <i>Notropis chiliticus</i>

We present a novel mitogenome assembly of the Redlip Shiner, <i>Notropis chiliticus</i>, and assemblies for the Greenhead Shiner, <i>N. chlorocephalus</i> (Cypriniformes: Leuciscidae). Both are charismatic minnows in the taxonomic group <i>Hydrophlox</i> and are endemic to the eastern United States. The <i>N. chiliticus</i> genome contains 16,711bp and <i>N. chlorocephalus</i> 16,706bp each comprising a total of 13 protein coding genes, 22 tRNAs, two rRNAs, and a control region. Sequence order and genome composition are similar to other <i>Notropis.</i> We provide evidence supporting a monophyletic <i>Hydrophlox</i>, while other phylogenetic relationships within <i>Notropis</i> support convoluted taxonomic revisions throughout the history of the genus.