A Astyanax mexicanus from Chiquitita cave B The mysid shrimp, Spelaeomysis quinterensis, also from Chiquitita cave. Both stygobitic organisms have overlapping biogeographic ranges throughout the El Abra karstic area, in northeaster Mexico.

  Part of: Kopp J, Avasthi S, Espinasa L (2018) Phylogeographical convergence between Astyanax cavefish and mysid shrimps in the Sierra de El Abra, Mexico. Subterranean Biology 26: 75-84. https://doi.org/10.3897/subtbiol.26.27097