High variability in the eye and pigmentation level within the population inhabiting Chiquitita Cave. A eye size reduced B pupil closed C in the foreground a troglomorphic fish with reduced and embedded eyes and in the background a pigmented fish with large eyes D eyes and pigment mostly absent. Black arrow highlights pigmented cells in some troglomorphic fish and yellow arrow highlights fragmentation of the suborbital bone III.

  Part of: Espinasa L, Legendre L, Fumey J, Blin M, Rétaux S, Espinasa M (2018) A new cave locality for Astyanax cavefish in Sierra de El Abra, Mexico. Subterranean Biology 26: 39-53. https://doi.org/10.3897/subtbiol.26.26643