echelleorum, Gambusia Portnoy [D. S.], Bretzing-Tungate [R. J.], Fields [A. T.], Bean [M. G.], Smith [R. K.], Dolan [E. P.], Blanchard [R.] & Conway [K. W.] in Portnoy, Bretzing-Tungate, Fields, Bean, Smith, Dolan, et al. 2025:12, Figs. 2aiv, biii, cii, diii, eiii [Royal Society Open Science v. 12: 251025; ref. 42589] Outflow drainage of Bitter Lake within Bitter Lake National Wildlife Refuge, Chaves County, New Mexico, U.S.A., 33°27'36.1"N, 104°24'08.3″ W. Holotype: TCWC 21104.01. Paratypes: TCWC 21104.02 (8), 21105.01 (12), 21105.02 (7). •Valid as Gambusia echelleorum Portnoy, Bretzing-Tungate, Fields, Bean, Smith, Dolan, Blanchard & Conway 2025. Current status: Valid as Gambusia echelleorum Portnoy, Bretzing-Tungate, Fields, Bean, Smith, Dolan, Blanchard & Conway 2025. Poeciliidae: Poeciliinae. Distribution: North America: spring fed creeks and sink holes within Bitter Lake National Wildlife Refuge, Chaves County, New Mexico, U.S.A. Habitat: freshwater.